Normal pr interval length Study guides, Class notes & Summaries
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![CARDIAC- HEALTHSTREAM TELEMETRY TEST EXAM 2023](/docpics/3383360/64f85a34db0ba_3383360_121_171.jpeg)
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CARDIAC- HEALTHSTREAM TELEMETRY TEST EXAM 2023
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CARDIAC- HEALTHSTREAM 
TELEMETRY TEST EXAM 2023 
along what axis is time measured in an EKG paper? - CORRECT ANSWER-across a 
horizontal axis 
what does each small square on an EKG strip represent? - CORRECT ANSWER-1 mm 
in length 
0.04 seconds 
what does each large square on an EKG strip represent? - CORRECT ANSWER-5 mm 
in length 
0.2 seconds 
how can a regular rhythm be calculated on an EKG strip? - CORRECT ANSWER-when 
the rhythm is regular, the heart rate is 250 divided by the number o...
![HFHS Critical Care Exam (A+ Graded Solutions)](/docpics/3108263/64bafb456284e_3108263_121_171.jpeg)
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HFHS Critical Care Exam (A+ Graded Solutions)
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Normal Length for PR, QRS, and QT intervals. correct answers PR 0.12-0.20 sec, QRS 0.08-0.12 sec, and QT interval less than or = to 450 ms or half the R-R interval 
 
Big box on ECG readings = ___ seconds? correct answers 0.20 seconds 
 
Little boxes on ECG readings = ____ seconds? correct answers 0.04 seconds 
 
The mA that achieves capture is the _______ _________ correct answers pacing threshold 
 
Defibrillation energy settings (biphasic and monophasic) correct answers biphasic 120-200 j and...
![Relias Dysrhythmia Basic Test Answers Solution guide 2023.](/docpics/63d4178087fcd_2307960.jpg)
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Relias Dysrhythmia Basic Test Answers Solution guide 2023.
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Relias Dysrhythmia Basic Test Answers 
 
normal sinus rhythm 
heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute 
 
Sinus Arrhythmia 
Appearance is ALMOST NORMAL: 
Respiratory – Circulatory interaction 
Rate INCREASES with INSPIRATION (IN=IN) 
 
Sinus Bradycardia 
<60 
normal sinus rhythm 
 
Sinus Tachycardia 
>100 (100-150) 
normal sinus rhythm 
 
Premature Atrial Contraction (PAC) 
Heart Rate: Depends on underlying rhythm ...
![BAMC Telemetry questions with correct answers graded A+ 2023/2024](/docpics/3837237/65540af8393ea_3837237_121_171.jpeg)
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BAMC Telemetry questions with correct answers graded A+ 2023/2024
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BAMC TelemetryP wave - correct answer -Impulse at SA node 
-Last .10 secs 
 
.10 seconds - correct answer Duration of P wave 
 
PR interval - correct answer - Measured at the beginning of P wave through beginning of QRS 
-Lasts between .12-.20 seconds 
 
.12-.20 - correct answer Duration of PR Interval 
 
QRS complex - correct answer -Measured from Q to S 
-.04-.10 seconds 
 
.04-.10 - correct answer QRS complex duration 
 
ST Segment - correct answer -Measured from end of QRS to onset of T 
...
![(answered)Relias ED RN A, Complete Test 2023.](/docpics/6358103bf05c9_2055887.jpg)
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(answered)Relias ED RN A, Complete Test 2023.
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Relias ED RN A, Complete Test Fall 2023 
 
What is the current recommended dose of intravenous or intraosseous epinephrine in adult patients with cardiac arrest? 
10 mg every 10 minutes 
1 mg every 3-5 minutes 
1 mg every 7 minutes 
0.1 mg every 2 minutes 
 
A patient with a traumatic brain injury (TBI) is MOST likely to suffer from what condition? 
Diabetes mellitus 
Cerebral palsy 
Diabetes Insipidus 
Myxedema coma 
 
A patient presents after sustaining a roll-over motor vehicle accident. Th...
![CASAL II OA LATEST 2023 WITH CORRECT SOLUTIONS](/docpics/63f4c5b948d01_2395050.jpg)
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CASAL II OA LATEST 2023 WITH CORRECT SOLUTIONS
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SA node correct answers pacemaker, 60-100bpm,Depolarization R atria, p wave, 
 
AV node correct answers Gatekeeper, intraseptal, Allows delay for blood so no back up, 40-60 bpm 
 
Bundle of His correct answers Intraventricular, 40-60bpm, sends to purkinje fibers for ventricular depolarization 
 
L and R bundle branches correct answers 20-40bpm, 
 
Purkinje fibers correct answers 20-40bpm, ventricular depolarization (QRS) complex 
 
Preload correct answers LVEDP determined by LVEDV 
 
Afterload c...
![BKAT ICU Post Test 2023 (solved)](/docpics/6416b209533c4_2488081.jpg)
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BKAT ICU Post Test 2023 (solved)
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Nitroprusside purpose - Answer- decreases preload and afterload by vasodilation (mainly afterload) 
 
Dobutamine mechanism of action - Answer- contractility 
 
Dopamine at a low-end dose "renal dose" - Answer- 0.5-4mcg/kg/min 
increases renal and mesentric perfusion 
 
Dopamine at a mid-range dose - Answer- 4-10mcg/kg/min 
increases contractility and heart rate 
 
Dopamine at a high-range dose - Answer- greater than 10mcg/kg/min 
vasoconstriction and increases BP 
 
Dopamine and Levophed inf...
![CPSGT questions with correct answers](/docpics/3806673/654db95967b23_3806673_121_171.jpeg)
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CPSGT questions with correct answers
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Normal Sinus Rhythm 
Heart rate CORRECT ANSWER 60 - 100 bpm 
 
Normal Sinus Rhythm 
P Wave length CORRECT ANSWER 0.12 seconds 
 
Normal Sinus Rhythm 
PR Interval CORRECT ANSWER 0.12 - 0.20 
 
Normal Sinus Rhythm 
QRS length CORRECT ANSWER 0.04 - 0.10 
 
Normal Sinus Rhythm 
QT interval length CORRECT ANSWER 0.36 - 0.44 
 
1st degree CORRECT ANSWER a delay of more than 0.2 seconds between the p wave and the qrs complex 
 
2nd degree type 1 CORRECT ANSWER the distance between the P wave and the QR...
![NBME CBSE, ANSWERED](/docpics/4096442/658d1c0986d73_4096442_121_171.jpeg)
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NBME CBSE, ANSWERED
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NBME CBSE, ANSWERED-Bulbus cordis - Smooth parts (outflow tract) of left and right ventricles 
 
endocardial cushions - Atrial septum, membranous interventricular septum; AV and semilunar valves 
 
neural crest 
 
left horn of the sinus venosus - coronary sinus 
 
posterior, sub cardinal, and supra cardinal veins - IVC 
 
Right common cardinal vein and right anterior cardinal vein - SVC 
 
Right horn of sinus venosus - Smooth part of right atrium (sinus venarum) 
 
Patent foramen ovale - failure...
![NBME CBSE Questions And Answers](/docpics/3655391/653177f3080bd_3655391_121_171.jpeg)
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NBME CBSE Questions And Answers
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Bulbus cordis correct answer: Smooth parts (outflow tract) of left and right ventricles 
 
endocardial cushions correct answer: Atrial septum, membranous interventricular septum; AV and semilunar valves 
 
neural crest 
 
left horn of the sinus venosus correct answer: coronary sinus 
 
posterior, sub cardinal, and supra cardinal veins correct answer: IVC 
 
Right common cardinal vein and right anterior cardinal vein correct answer: SVC 
 
Right horn of sinus venosus correct answer: Smooth ...
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