Normal pr interval length Study guides, Class notes & Summaries

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...

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 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 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 ...

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...

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...

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...

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-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...

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 ...