ABSITE CRITICAL CARE EXAM 2024
ACTUAL EXAM COMPLETE 300
QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+ //
BRAND NEW!!
A 60-year-old man has an arterial PO of 60 mm Hg when
the calculated alveolar PO is 94 mm Hg. This difference is
most commonly due to - ....ANSWER...a ventilation-
perfusion mismatch
As oxygen delivery increases on the flat horizontal portion
of the oxygen consumption-delivery curve -
....ANSWER...Oxygen consumption remains the same
(On the flat horizontal portion of the oxygen consumption-
delivery curve, oxygen delivery meets cellular demand of
oxygen; as oxygen delivery increases, oxygen
consumption remains the same.)
,2|Page
Most disorganized ventricular arrhythmias (frequent
PVCs, ventricular fibrillation) are caused by -
....ANSWER...Metabolic derangements.
(Most disorganized ventricular arrhythmias are caused by
some sort of metabolic derangement such as ischemia or
magnesium or potassium deficiencies. These abnormalities
are not well treated by antiarrhythmic medications.)
The best management for a patient with a posterior knee
dislocation - ....ANSWER...Arteriogram.
(The patient may have fairly normal pulses and still have
an intimal injury of the popliteal artery that is similar to the
intimal disruption that can be seen in aortic isthmus
injury.)
What complications can occur during central venous
catheter placement? - ....ANSWER...Pneumothorax,
arterial puncture, air or wire embolism, dysrhythmia, av
fistula, pseudoaneurysm
What should you immediately do if a patient receives an
air embolus? - ....ANSWER...Roll pt to left and
trendelenberg to keep air in R atrium or ventricle, attempt
to aspirate air with central venous catheter/pulmonary
artery catheter
Treatment for hemoptysis after pulmonary artery catheter
placement: - ....ANSWER...Immediately pull the catheter
slightly back and re-inflate the balloon, increase PEEP to
tamponade the bleeding, mainstem intubate the
contralateral lung, attempt may be made to place a fogarty
catheter down the effected side, may need thoracotomy
and lobectomy
What West zone of the lung is the desired location for a
pulmonary artery catheter? - ....ANSWER...Zone 3
(pressure in pulmonary arteries > veins > alveoli)
Which portion of the lung has the highest V/Q ratio and
which portion has the lowest V/Q ratio? -
....ANSWER...V/Q is highest in upper lobes, lowest in
lower lobes
At what point in the respiratory cycle is the PCWP most
accurate in a ventilated patient? - ....ANSWER...End
expiration
, 4|Page
At what point in the respiratory cycle is the PCWP most
accurate in a nonventilated patient? - ....ANSWER...Peak
inspiration
What conditions may make the wedge pressure unreliable?
- ....ANSWER...High PEEP
Aortic regurg
Mitral stenosis
Poor left ventricular compliance
Cardiac tamponade
Pulmonary hypertension
ARDS
PTX
Pulmonary artery catheters allow the direct measurement
of which physiologic parameters? - ....ANSWER...CVP
Right atrial pressure
Right ventricular end-diastolic pressure
Pulmonary artery wedge pressure SvO2
What complications are associated with pulmonary artery
catheter placement? -
....ANSWER...Arrhythmias/conduction defects
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