The potential for relay intercropping and double cropping was assessed in field trials over three consecutive years at Gatton, Queensland. The rationale was to use controlled traffic technology to facilitate relay and double cropping and thus research a cropping system that could exploit late winter crop rainfall. In Field Trial I, grain sorghum and sunflower, broadacre crops already grown within the Southern and Darling Downs regions of Queensland and New South Wales were intercropped into wheat; sunflower was intercropped with wheat in Field Trial II. Sole summer plantings were made at the same time as intercrops were planted. The wheat crop was cut and stubble removed to facilitate this. Various planting dates (three for Field Trial I; four for Field Trial II) for the relayed summer crops were used to determine if an optimum planting time existed. Plant height, tiller number, light interception, grain yield, soil moisture and economic return were used as parameters to compare the intercrop with sole plantings in Field Trial I. Grain yield, soil moisture, rainfall infiltration and economic return were measured in Field Trial II. Research also involved the modification and testing of a tractor to carry out the sowing of the intercrop. In Field Trial I, light interception was shown to vary at different stages of the wheat crop and the use of these stages to determine optimum planting dates of the relay crop is suggested. In both trials, no differences were recorded in the grain yield between intercropped and sole cropped wheat treatments suggesting the trafficking of the plot did not affect the wheat. As neither sorghum or sunflower established as intercrops, competition was not a factor in affecting wheat yields. Moisture readings in both trials showed little change below a depth of 100 cm; however some treatment differences were present at shallower depths. In Field ii Trial I, sole summer sorghum, especially the first planting date, showed reduced water capture/ higher soil evaporation due to wheat removal initially and later transpiration loss due to crop growth and increased weed pressure. Sole wheat treatments showed increased moisture storage after harvest due to lack of water use by the crop and increased infiltration/reduced runoff due to stubble retention. Improved soil moisture recharge after rainfall events was apparent in double cropped treatments suggesting not only improved water utilisation but also improved capture and storage is possible within this system. Sorghum, commonly used throughout south eastern Queensland as a summer crop option, proved unsuitable for relay intercropping in Field Trial I for Planting Dates 1 and 2. Minimum soil temperatures for these plantings were marginal as they were close to the 15o Celsius level recommended for sorghum. However, even though establishment was poor for the intercropped plantings, it was higher for sole sorghum plantings. Wheat allelopathic effects may be involved. To avoid the temperature limitations of sorghum, sunflower was selected as an alternative intercrop in the later planting dates of Field Trial I and all dates for Field Trial II. Reasons for the poor establishment and yield of sunflowers in the earlier intercrop planting dates compared to sole plantings remain unknown but also may be related to allelopathic effects from intercropped wheat. Low soil temperature was not a factor affecting establishment Yields for planting dates were recorded in the intercropped sunflower treatments for Field Trial II and the optimal planting time for sunflowers in a wheat/sunflower relay intercrop was identified as when physiological maturity of the wheat had occurred. This may relate to the wheat crop stage. In Field Trial II, no significant differences in soil moisture were recorded between treatments from overall water use for the trial period. There were differences in water use between intercropped and sole cropped treatments for iii some rainfall events. Three rainfall events were chosen for closer study in each of the field trials conducted. Each event varied in the length and time as well as the duration and intensity of the rain that fell for the period. For the first rainfall period the moisture content of the first planting date of the sole summer treatment and to a lesser extent the second planting date of the same treatment increased, most likely due to wheat removal. In the third rainfall period the double cropped sunflower treatment with stubble tended to store less moisture and this may be due to the active crop growth at this time. It was evident in both field trials of the need for an effective weed control program in the intercrop plots. Weeds were controlled in wheel tracks by glyphosate sprays. Cultural methods may help but a herbicide suitable for both components of the intercrop would be very useful. A tractor was successfully modified to a 3 metre wheelspace and a clearance of 70 cm. This proved sufficient for planting the relay intercrop in Field Trial II without negatively affecting the yield of the standing crop. The row spacing of 18 cm for wheat in a 3 metre fixed bed and wheeltrack configuration assisted with guidance and interplanting of the relay crop. The relay crop was sown as single alternating rows.

The potential for relay intercropping and double cropping was assessed in field trials over three consecutive years at Gatton, Queensland. The rationale was to use controlled traffic technology to facilitate relay and double cropping and thus research a cropping system that could exploit late winter crop rainfall. In Field Trial I, grain sorghum and sunflower, broadacre crops already grown within the Southern and Darling Downs regions of Queensland and New South Wales were intercropped into wheat; sunflower was intercropped with wheat in Field Trial II. Sole summer plantings were made at the same time as intercrops were planted. The wheat crop was cut and stubble removed to facilitate this. Various planting dates (three for Field Trial I; four for Field Trial II) for the relayed summer crops were used to determine if an optimum planting time existed. Plant height, tiller number, light interception, grain yield, soil moisture and economic return were used as parameters to compare the intercrop with sole plantings in Field Trial I. Grain yield, soil moisture, rainfall infiltration and economic return were measured in Field Trial II. Research also involved the modification and testing of a tractor to carry out the sowing of the intercrop. In Field Trial I, light interception was shown to vary at different stages of the wheat crop and the use of these stages to determine optimum planting dates of the relay crop is suggested. In both trials, no differences were recorded in the grain yield between intercropped and sole cropped wheat treatments suggesting the trafficking of the plot did not affect the wheat. As neither sorghum or sunflower established as intercrops, competition was not a factor in affecting wheat yields. Moisture readings in both trials showed little change below a depth of 100 cm; however some treatment differences were present at shallower depths. In Field ii Trial I, sole summer sorghum, especially the first planting date, showed reduced water capture/ higher soil evaporation due to wheat removal initially and later transpiration loss due to crop growth and increased weed pressure. Sole wheat treatments showed increased moisture storage after harvest due to lack of water use by the crop and increased infiltration/reduced runoff due to stubble retention. Improved soil moisture recharge after rainfall events was apparent in double cropped treatments suggesting not only improved water utilisation but also improved capture and storage is possible within this system. Sorghum, commonly used throughout south eastern Queensland as a summer crop option, proved unsuitable for relay intercropping in Field Trial I for Planting Dates 1 and 2. Minimum soil temperatures for these plantings were marginal as they were close to the 15o Celsius level recommended for sorghum. However, even though establishment was poor for the intercropped plantings, it was higher for sole sorghum plantings. Wheat allelopathic effects may be involved. To avoid the temperature limitations of sorghum, sunflower was selected as an alternative intercrop in the later planting dates of Field Trial I and all dates for Field Trial II. Reasons for the poor establishment and yield of sunflowers in the earlier intercrop planting dates compared to sole plantings remain unknown but also may be related to allelopathic effects from intercropped wheat. Low soil temperature was not a factor affecting establishment Yields for planting dates were recorded in the intercropped sunflower treatments for Field Trial II and the optimal planting time for sunflowers in a wheat/sunflower relay intercrop was identified as when physiological maturity of the wheat had occurred. This may relate to the wheat crop stage. In Field Trial II, no significant differences in soil moisture were recorded between treatments from overall water use for the trial period. There were differences in water use between intercropped and sole cropped treatments for iii some rainfall events. Three rainfall events were chosen for closer study in each of the field trials conducted. Each event varied in the length and time as well as the duration and intensity of the rain that fell for the period. For the first rainfall period the moisture content of the first planting date of the sole summer treatment and to a lesser extent the second planting date of the same treatment increased, most likely due to wheat removal. In the third rainfall period the double cropped sunflower treatment with stubble tended to store less moisture and this may be due to the active crop growth at this time. It was evident in both field trials of the need for an effective weed control program in the intercrop plots. Weeds were controlled in wheel tracks by glyphosate sprays. Cultural methods may help but a herbicide suitable for both components of the intercrop would be very useful. A tractor was successfully modified to a 3 metre wheelspace and a clearance of 70 cm. This proved sufficient for planting the relay intercrop in Field Trial II without negatively affecting the yield of the standing crop. The row spacing of 18 cm for wheat in a 3 metre fixed bed and wheeltrack configuration assisted with guidance and interplanting of the relay crop. The relay crop was sown as single alternating rows.

This thesis deals with the success of manual and instrumental resuscitation. In the theoretical part of the thesis summarizes the history and organizational structure of emergency medical services Pardubice region, description of the Lucas chest compression and theoretical formulation of the problem. The practical part is focused on the evaluation of a set of data that are selected from the total number of trips EMS crews Pardubice. The selected file refers to cases NZO exits and their distribution in the subsequent resuscitation manual or instrument. Describes the percentage will compare their success with the use of the results of individual bases EMS ambulance crews Pak.

Hjärtstillestånd är ett tillstånd då hjärtat förlorat förmågan att pumpa ut blod i kroppen vilket leder till cerebral och koronar ischemi. Hjärtstillestånd definieras som plötslig och ihållande medvetslöshet med pulslöshet och andningsstillestånd eller agonal andning. Vanliga symtom som kan uppstå en timme före hjärtstilleståndet är yrsel, trötthet, bröstsmärtor och andningssvårigheter. Behandlingen vid hjärtstillestånd i Sverige utgörs av ”basic” och ”advanced cardiac life support”. De viktigaste åtgärderna innefattar hjärt-lung-räddning, defibillering och läkemedelsadministrering. Förstahandsläkemedlet är standarddos adrenalin baserat på den vasokontraherande och därmed blodtryckshöjande effekten. Syftet med arbetet är att utvärdera effekten av standarddos vasopressin alternativt högdos adrenalin jämfört med standarddos adrenalin på vuxna med hjärtstillestånd. Arbetet är en litteraturstudie där sju studier om effekten av standarddos adrenalin jämfört med standarddos vasopressin alternativt högdos adrenalin vid hjärtstillestånd hos vuxna har analyserats. Studierna hämtades från databasen Pubmed. De patienter som behandlades med standarddos vasopressin istället för den första eller andra standarddosen adrenalin hade bättre överlevnad till sjukhusinläggning (31,6% jämfört med 26,0%, p <0,01). De patienter som behandlades med högdos adrenalin istället för standarddos adrenalin hade bättre överlevnad till sjukhusinläggning (26,1% jämfört med 23,1%, p <0,05). Ingen överlevnadsfördel till sjukhusutskrivning fanns för varken standarddos vasopressin eller högdos adrenalin. Dock behövs fler studier med fler patienter för att verifiera resultaten i denna litteraturstudie. Det vore även intressant med studier som fokuserar på de enskilda hjärtstilleståndsrytmerna. Dessutom behövs mer forskning om de potentiellt negativa effekterna på hjärtat och hjärnan som högdos adrenalin kan ha. Orsaken till den dåliga överlevnaden till sjukhusutskrivning oavsett vasopressorisk behandling behöver utredas. / Cardiac arrest is a state when the heart has lost the ability to pump blood to the body which causes cerebral and coronary ischemia. Cardiac arrest is defined as sudden and sustained unconsciousness with pulselessness and suspension of breathing or agonal breathing. Common symptoms that can arise one hour before a cardiac arrest includes dizziness, tiredness, chest pain and breathing difficulties. The treatment for cardiac arrest in Sweden includes basic and advanced cardiac life support. The most important measures are cardiopulmonary resuscitation, defibrillation and drug administration. The drug of choice is standard dose adrenaline based on its vasoconstricting and thus blood pressure raising effect. The aim of this study was to evaluate the effect of standard dose vasopressin alternatively high dose adrenaline compared to standard dose adrenaline in adults with cardiac arrest. This study is a literature review where seven studies on the effect of standard dose adrenaline compared to standard dose vasopressin alternatively high dose adrenaline on cardiac arrest in adults have been analyzed. The studies were found in the database Pubmed. Four studies evaluate the effect on survival by standard dose vasopressin compared to standard dose adrenaline. Three studies evaluate the effect on survival by high dose adrenaline compared to standard dose adrenaline. Patients that were treated with standard dose vasopressin instead of the first or second standard dose adrenaline had better survival to hospital admission (31,6% compared to 26,0%, p <0,01). Patients that were treated with high dose adrenaline instead of standard dose adrenaline had better survival to hospital admission (26,1% compared to 23,1%, p <0,05). There were no effects on survival to hospital discharge for either standard dose vasopressin or high dose adrenaline. More studies are needed though with more patients to verify the results of this literature review. It would also be interesting with studies that focus on the different cardiac arrest rhytms. More research is needed about the potential negative effects on the heart and brain caused by high dose adrenaline. The reason for the bad results regarding survival to hospital discharge regardless of vasopressive treatment needs to be evaluated.

The overall purpose of this project is to develop a cross-platform CPR (cardiopulmonary resuscitation) application mainly for iOS and Android devices. This application aims to guide healthcare workers in the different processes and expected medication during cardiac arrest, which can often be a fast-paced and stressful scenario. The application will need to provide time-based and previous action-based recommendations for following medication and steps. Each step taken as well as at what time it was performed will also need to be documented automatically through the usage of the application.  This application is implemented using the framework React Native. Facebook developed React Native in 2015 targeting mobile application development. The base structure of React Native is based on React, a JavaScript library released in 2013 used to build web interfaces. React Native allows creation of mobile applications that can run on iOS and Android devices with a single codebase.  This project resulted in a mobile application capable of running on both iOS and Android platforms. The application has enough functionality to be used in a simulation for the CPR procedure during a cardiac arrest rescue scenario. / Det övergripande syftet med detta projekt är att utveckla en cross-platform HLR (hjärt- och lungräddnings) applikation främst för iOS och Android enheter. Syftet med denna applikation är att hänvisa sjukvårdspersonal genom de olika processer och den förväntade medicineringen vid hjärtstopp, vilket ofta kan vara ett väldigt hög tempo och stressfyllt scenario. Applikationen kommer behöva ge tidsbaserade och tidigare åtgärds baserade rekommendationer för följande medicinering och steg. Varje steg  som tas samt när de tas kommer även behöva dokumenteras automatiskt genom användandet av applikationen.  Denna applikation implementeras med hjälp av ramverket React Native. Facebook utvecklade React Native 2015 med inriktning på mobilapplikationsutveckling. Bas strukturen hos React Native är baserad på React, ett JavaScript bibliotek släppt 2013 som används till att bygga webbgränssnitt. React Native tillåter skapande av mobilapplikationer som kan användas på iOS och Android enheter med en enda kodbas.  Detta projekt resulterade i en mobilapplikation kapabel att köras på både iOS och Android plattformar. Denna applikation har tillräcklig funktionalitet att användas i en simulering för HLR proceduren under ett hjärtstopps scenario.

Bakgrund: Omkring 10.000 människor drabbas årligen av hjärtstopp i samhället. För den bästa chansen till överlevnad krävs snabb behandling med HLR och defibrillering. Att medverka som närstående vid en återupplivning beskrivs som den mest traumatiska händelsen en människa kan bevittna, samtidigt ökas förståelsen av situationen och ger ett avslut. Sjuksköterskan har ett stort ansvar över patientens omvårdnad och relaterat till behovet av resurser och otillräckliga riktlinjer så kan sjuksköterskan hamna i en utsatt position. Syfte: Syftet med litteraturstudien var att beskriva sjuksköterskors erfarenheter av närståendes närvaro vid återupplivning med HLR efter hjärtstopp. Metod: En beskrivande litteraturstudie innehållande 12 vetenskapliga artiklar med kvalitativ, kvantitativ och mixad ansats. Artiklarna söktes fram genom den vetenskapliga databasen Medline via PubMed. Huvudresultat: Resultatet visade ingen konsensus i sjuksköterskornas erfarenheter. De ville inte ha närstående närvarande på grund av negativ effekt på utförandet. Känslor av otrygghet hos sjuksköterskorna skapades av närstående. Sjuksköterskorna ansåg att närstående blev traumatiserade av händelsen. Resursbehovet blev tydligt då sjuksköterskorna upplevde bemanningen för låg för att avsätta personal till närstående. Sjuksköterskornas professionalism ökade med närvaron och närståendes sorgeprocess främjades. Det var viktigt att beakta patientens egen önskning inom ämnet. Slutsats: Trots positiva effekter ansåg sjuksköterskorna att de negativa aspekterna dominerade. Det är en komplicerad fråga med olika åsikter. Informationen som framkommit ger insikter i hur närståendes närvaro upplevs. Detta behövs för att chefer och HLR-utbildade ska ta ställning, öka kunskapen och starta en diskussion om fenomenet. / Background: Approximately 10.000 people experience cardiac arrest every year. The best opportunity for survival is effective treatment with CPR and defibrillation. To participate as a relative during a resuscitation is described as traumatic, but it increases the understanding and gives a closure. Nurses have a responsibility for the patient’s care and due to resources and vague guidelines, nurses can be in an exposed position. Aim: The purpose of this study was to describe nurses’ experiences of relatives’ presence during resuscitation with CPR after cardiac arrest. Method: A descriptive literature review containing 12 scientific articles with qualitative, quantitative and mixed methods. The articles were identified in the database Medline via PubMed. Result: There was no consensus in the nurses’ experiences. They did not want relatives present due to negative impact on their work. Feelings regarding insecurity arose with relatives’ presence. According to the nurses, relatives became traumatized by the event. The staff level was too low to assign personnel to relatives due to the lack of resources. However, nurses also reported increased professionalism and that the relatives’ grieving process benefited. It was important to consider the patient's wishes on the subject. Conclusion: Despite positive effects, the nurses felt that the negative aspects dominated. It is a complicated question with multiple views. The results provide knowledge on how the presence of relatives is experienced. This is needed for personnel to take a stand, be educated and start to discuss the phenomenon.

Bakgrund: Att barn drabbas av hjärtstopp är ovanligt men tyvärr är överlevnadsgraden låg. Träning och repetition inom hjärt- och lungräddning är nödvändig för att sjuksköterskor ska kunna bevara sin kompetens och klara av att utföra HLR med bra kvalitet. Trots att det finns riktlinjer och rekommendationer för barn-HLR är tidsspannet mellan utbildningstillfällena längre än rekommenderat. Motiv: Eftersom HLR på barn sällan behöver utföras och det finns brister i kontinuiteten av den praktiska och teoretiska utbildningen skapas svårigheter för sjuksköterskor att upprätthålla sina kunskaper. Forskning kring hur sjuksköterskors självskattar sin kompetens inom barn-HLR är mycket bristfällig. Syfte: Syftet med studien var att undersöka sjuksköterskors självskattade kompetens att utföra barn-HLR, samt att mäta sambandet mellan den självskattade kompetensen och antalet yrkesår och tid sedan senaste HLR-utbildningen. Metod: Datainsamlingen genomfördes med hjälp av ett självrapporteringsformulär via en webbaserad enkät med sjuksköterskor (n=55) som rekryterades via ett icke slumpmässigt urval. Resultat: Sjuksköterskorna skattade sin kompetens inom larmrutiner, luftvägshantering, kompressionsteknik och sin övergripande kompetens inom HLR som hög. Svaga skillnader hittades hos de som självskattat sin kompetens till hög respektive låg, där de som arbetat längre även skattade sin kompetens som högre. Konklusion: Det är kanske inte utbildningen i sig som påverkar den självskattade kompetensen inom barn-HLR utan sjuksköterskans kliniska erfarenhet. En hög självskattad kompetens inom barn-HLR ger inga garantier för ett korrekt utförande och eftersom behovet av mer utbildning och simulering var högt kan det finnas en osäkerhet gällande kunskap och utförandet bland sjuksköterskorna. Att främja sjuksköterskors kompetensutveckling inom verksamheten kan bidra till en ökad kunskap och ett mer korrekt utförande av barn-HLR och därmed ge det drabbade barnet en högre chans till överlevnad. / Background: The fact that children suffer from cardiac arrest is unusual, but unfortunately the survival rate is low. Training and repetition in cardiopulmonary resuscitation is necessary for nurses to be able to maintain their competence and be able to perform CPR with good quality. Although there are guidelines and recommendations for pediatric CPR, the time span between training sessions is longer than recommended. Motive: As CPR on children rarely needs to be performed and there are shortcomings in the continuity of the practical and theoretical training, difficulties are created for nurses to maintain their knowledge. Research on how nurses' self-assess their competence in pediatric CPR is very deficient. Aim: The purpose of the studies was to investigate nurses' self-assessed competence to perform pediatric CPR, and to measure the relationship between the self-assessed competence and the number of professional years and time since the most recent CPR training. Methods: The data collection was carried out using a self-report form via a web-based questionnaire with nurses (n = 55) which was recruited via a non-random sample. Result: The nurses rated their competence in alarm routines, airway management, compression technology and their overall competence in CPR as high. Weak differences were found among those who self-assessed their skills to high and low, respectively, where those who worked longer also rated their skills as higher. Conclusion: It may not be the education itself that affects the self-assessed competence in pediatric CPR but the nurse's clinical experience. A high self-rated competence in pediatric CPR provides no guarantees for a correct execution and since the need for more training and simulation was high, there may be an uncertainty regarding knowledge and execution among the nurses. Promoting nurses' competence development within the business can contribute to increased knowledge and a more correct execution of pediatric CPR and thus give the affected child a higher chance of survival.

Bakgrund: Vid hjärt- och lungräddning (HLR), både hospitalt och prehospitalt, kan närståendevara närvarande. Ett av de globala hållbara målen eftersträvar en god hälsa och välbefinnandeför alla. Detta kan erhållas med personcentrerad vård som syftar bland annat på att stötta,kommunicera och visa lyhördhet till närstående. Tidigare forskning belyser att patientens vårdinte påverkas negativt av närståendes närvaro under pågående HLR och därför har riktlinjerinförts för att involvera närstående under HLR.Syfte: Att beskriva närståendes upplevelser av att närvara vid HLR.Metod: En litteraturöversikt med 15 vetenskapliga artiklar, fem kvalitativa och tio kvantitativa.Resultat: En huvudkategori identifierades, närståendes behov av information ochkommunikation. Denna huvudkategori indelades i fyra underkategorier, mentala effekter av attnärvara eller inte närvara under HLR, att vara fysiskt närvarande, förtroende tillvårdpersonalen samt stöd i sorgeprocessen. Närstående är i behov av kommunikation ochinformation i samband med HLR. Närstående kunde drabbas av psykiska besvär som PTSDoch ångest både av att närvara och att inte närvara. Närvaro under HLR kunde leda till enunderlättad sorgeprocess och ökat förtroende till vårdpersonalen.Slutsats: Ökad kunskap hos vårdpersonalen kring omhändertagandet av närstående i sambandmed HLR kan underlätta för närstående. Närstående är i stort behov av att få möjligheten attnärvara under HLR men behöver då en avsatt personal som kan stötta närstående. / Background: During cardiopulmonary resuscitation (CPR) at the hospital or prehospital thereis a posibility that relatives can be present. One of the sustainable development goals is aboutgood health and well-being for all. With a person-centred approach for communication, supportand sensitivity towards relatives the goal can be reached. Previous research shows how patientcare is not affected in the present of relatives. This has resulted in guidelines and routines forinviting relatives during CPR.Aim: To describe relatives experience of being present during CPR.Method: A literature review including 15 articles, ten quantitative articles and five qualitativearticles.Results: One theme was identified relatives' need for information and communication. Withthe main theme four sub themes were identified: psychological effects from being or not beingpresent during CPR, to be physically present, trust in healthcare personnel and support duringthe grieving period. Relatives are in need for communication and information during CPR andcould suffer from physiological effects such as PTSD and anxiety from being and not beingpresent during CPR. But being present during CPR could ease the stress during the grievingperiod and gain trust in the healthcare personnel.Conclusion: With additional training and knowledge healthcare personnel could supportrelatives during CPR. Since relatives are in need of constant communication and informationduring CPR healthcare personnel are needed to provide this to ease the stress on the relative.

No description available.

Bakgrund: Incidensen av hjärtstillestånd i Sverige uppskattas till 5000 fall varje år. Barn drabbas också av hjärtstopp hos tandläkare, därför är det viktigt att tandläkare har kunskap inom HLR till barn för att öka chansen för överlevnad. Syfte: Att ta reda på hur mycket kunskap tandläkarstudenter på tandläkarutbildningar i Stockholm, Göteborg och Malmö har om HLR till barn och att undersöka om tandläkarstudenterna behöver ytterligare utbildning i HLR till barn för att säkerställa kunskaper inom området. Material & Metod: Webbaserad enkätstudie där tandläkarstudenter på sista terminen på utbildningsorterna; Stockholm, Göteborg och Malmö tillfrågades om deltagande och att besvara 20 frågor om hantering och kunskaper gällande barn-HLR. Resultat: Totalt tillfrågades 263 tandläkarstudenter från Stockholm, Göteborg och Malmö, och 90 personer av dessa svarade 34,2 %. Av alla tandläkarstudenter uppvisade 31,1 % korrekt kunskap i alla steg att kunna utföra HLR i rätt ordning, som bröstkompressioner samt skapandet av fria luftvägar. Av Göteborgs tandläkarstudenter uppvisade 54,5 % rätt kunskap medan motsvarande siffror för Malmö och Stockholm var 23,8 % respektive 23,1 %. Av de svarande önskade 85,6 % mer information om att hantera en situation vid hjärtstopp av barn.  Slutsats: Fler studier med ett större antal deltagare behövs för att kunna kartlägga kunskapen hos tandläkarstudenter om akut hantering och omhändertagande av situationen vid hjärtstopp och andningsstopp hos barn. Genom framtida samarbete mellan tandläkarutbildningar så kan flera möjligheter erbjudas till studenter för att uppnå högre kunskapsnivå. Det kan även finnas ett behov att erbjuda HLR-utbildning för att öka kunskapen i samhället. / Background: The incidence of cardiac arrest in Sweden is estimated to be 5,000 cases per year.  Cardiac arrest also happens at the dentist, therefore it is important that dentists have knowledge in CPR for children. The aim: To investigate how much knowledge dental students in Stockholm, Gothenburg and Malmö have about CPR for children and investigate whether students need additional training. Material & Method: Web-based survey where dental students in their last semester in Stockholm, Gothenburg and Malmö, were asked to participate in answering 20 questions about  children-CPR. Results: A total of 263 dental students from Stockholm, Gothenburg and Malmö, and 90 of them responded 34.2%. Of all dental students, 31.1% demonstrated correct knowledge in all stages to be able to perform CPR in the correct sequence, such as chest compressions and the creation of free airways. Of Gothenburg's dental students, 54.5% demonstrated the correct knowledge, while the corresponding figures for Malmö and Stockholm were 23.8% and 23.1% respectively. Of the respondents, 85.6% wanted more information about handling a situation in the event of cardiac arrest in children. Conclusion: More studies with a larger number of participants are needed to be able to assess the level of knowledge of dental students about emergency management of situations of cardiac arrest and respiratory arrest. Through future collaboration, several opportunities can be offered to students to achieve a higher level of knowledge. There may also be a need to offer CPR training at both adult and child level.