Questions and Answers 2026
Normal Length for PR, QRS, and QT intervals. -
correct answer ✅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 answer ✅0.20 seconds
Little boxes on ECG readings = ____ seconds? -
correct answer ✅0.04 seconds
The mA that achieves capture is the _______ _________ -
correct answer ✅pacing threshold
Defibrillation energy settings (biphasic and monophasic) -
correct answer ✅biphasic 120-200 j and monophasic 360 j
Synchronized Cardioversion energy settings for SVT or aflutter, for
afib, and for monomorphic VT (biphasic and monophasic) -
correct answer ✅SVT or aflutter-biphasic 50-100 j & monophasic
200 j
Afib-biphasic 120-200 j & monophasic 200 j
Monomorphic VT-biphasic 100 j & monophasic 100 j
,HFHS Critical Care Exam Actual
Questions and Answers 2026
Vtach treatment -
correct answer ✅Synchronized cardioversion and Antiarrhythmic
such as Amiodarone (150-300 mg) and/or lidocaine
Vfib treatment -
correct answer ✅Defibrillation also can load them up with
Amiodarone
SVT treatment -
correct answer ✅Vasovagal maneuvers, carotid massage,
Adenosine (if BP is good) 6 mg for first dose and then 12 mg for the
second dose, or synchronized cardioversion
Torsades treatment -
correct answer ✅Synchronized cardioverison (if regular) or
defibrillation (if irregular) and administer Mg (treating underlying
cause)
Anatomical location of Cardiac Assessment Landmarks -
correct answer ✅
, HFHS Critical Care Exam Actual
Questions and Answers 2026
Pulse pressure calculation -
correct answer ✅Difference between the systolic and diastolic
pressure for example 120/60 the pulse pressure is 60!
Cardiac output normal values -
correct answer ✅4-8 Liters per minute (formula is Stroke Volume x
Heart Rate)
Cardiac Index normal values -
correct answer ✅2.5-4 L/min/m2 (formula is Cardiac output
divided by Body Surface Area aka need ht and wt)