HFHS Critical Care Exam with Verified Answers Graded A+
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Course
HFHS Critical Care
Institution
HFHS Critical Care
HFHS Critical Care Exam with Verified Answers Graded A+
Normal Length for PR, QRS, and QT
intervals.
PR 0.12-0.20 sec, QRS 0.08-0.12 sec,
and QT interval less than or = to 450 ms
or half th
HFHS Critical Care Exam with Verified Answers Graded A+
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
Normal Length for PR, QRS, and QT
intervals.
0.20 seconds
Big box on ECG readings = sec-
onds?
0.04 seconds
Little boxes on ECG readings =
seconds?
The mA that achieves capture is the
pacing threshold
Defibrillation energy settings (biphasic biphasic 120-200 j and monophasic 360
and monophasic) j
SVT or aflutter-biphasic 50-100 j &
Synchronized Cardioversion energy set- monophasic 200 j
tings for SVT or aflutter, for afib, Afib-biphasic 120-200 j & monophasic
and for monomorphic VT (biphasic and 200 j
monophasic) Monomorphic VT-biphasic 100 j &
monophasic 100 j
, HFHS Critical Care Exam with Verified Answers Graded A+
Synchronized cardioversion and Antiar-
rhythmic such as Amiodarone (150-300
mg) and/or lidocaine
Vtach treatment
Defibrillation also can load them up with
Amiodarone
Vfib treatment
Vasovagal maneuvers, carotid massage,
Adenosine (if BP is good) 6 mg for first
dose and then 12 mg for the second
SVT treatment dose, or synchronized cardioversion
Synchronized cardioverison (if regular)
or defibrillation (if irregular) and adminis-
ter Mg (treating underlying cause)
Torsades treatment
Anatomical location of Cardiac Assess-
ment Landmarks
Difference between the systolic and di-
Pulse pressure calculation astolic pressure for example 120/60 the
pulse pressure is 60!
4-8 Liters per minute (formula is Stroke
Cardiac output normal values
Volume x Heart Rate)
Cardiac Index normal values
, 2.5-4 L/min/m2 (formula is Cardiac out-
put divided by Body Surface Area aka
need ht and wt)
Central Venous Pressure or Right Atrial
2-6 mmHg or 2-8 cm H2O
Pressure normal values
Pulmonary Artery Systolic (PAS) 15-30
mmHg
Pulmonary Arterial Pressure (PAP) nor- Pulmonary Artery Diastolic (PAD) 5-15
mal values mmHg
Pulmonary Artery Mean (PAM) 9-18
mmHg
Similar to CVP or RAP and the diastolic
Pulmonary Artery Occlusion Pressure
pulmonary artery pressure will reflect
(PAOP) AKA Wedge normal values
this value closely... PAOP 6-12 mmHg
Systemic Vascular Resistance (SVR)
800-1200
normal values
Ejection Fraction normal value 65-75%
SVO2 normal values 60-80
Measure PAS and PAD @ the end of
PA Pressure considerations
expiration
Causes of decreased PAP, CVP/RAP, causes of decreased Hypovolemia and
PAOP venodilation
hypervolemia, increased peripheral vas-
cular resistance (due to decreased
PaO2, PE, COPD, ARDS, Pulm HTN),
mitral stenosis/insuff, aortic stenosis, LV
Causes of increased PAP ischemia, infarct, failure, pericardial tam-
ponade, increased intrapleural pressure
due to PEEP, auto PEEP, tension pneu-
mo, increased intra-abdominal pressure,
left-to-right intracardiac shunt.
Hypervolemia, impedance to RA emp-
tying due to: tricuspid stenosis, RV
ischemia/infarct/failure, increased PVR
(due to decreased PaO2, PE, COPD,
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