PCCN CARDIAC EXAM NEWEST 2024 ACTUAL
EXAM COMPLETE 200 QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW
Terms in this set (238)
Calculate the cardiac HR X SV=CO
output for a pt with a HR 70 X 65= 4550
of 70 and a SV of 65 ml. 4.6 L/min
Calculate the cardiac HR X SV=CO
output for a pt with a HR 70 X 65= 4550
of 70 and a SV of 65 ml. 4.6 L/min
HR X SV=CO
What % of the cardiac 20%
cycle is provided by the
atrial kick? Atrial kick is a term that represents the amount of the
• 15% total CO that is supplied via atrial contraction.
• 20% If the pt has a condition or dysrhythmia that impairs or
• 30% eliminates the atrial contraction, the pt may be
• 35% compromised.
Atrial kick is a term that represents the amount of the
Atrial Kick
total CO that is supplied via atrial contraction.
, 65%
The EF should be more than 50%. It represents the
A normal value for an EF
amount of blood ejected from the left ventricle
would be?
compared to the total amount available, expressed as
• 65%
a %. An EF of 35% or less indicates a problem with
• 40%
contractility, outflow or filling.
• 30%
• 25%
EXA: If the ventricle contains 90ml of blood and
50mls are ejected, the amount would be expressed as
a %, in this case 55%.
A 67 year old male is UNSTABLE ANGINA
admitted with chest pain
after collapsing at home. The change in quality, frequency, and duration
He is arguing with his wife indicates UNSTABLE ANGINA and may indicate that
that he should not be the pt is at increased risk for an MI. This pt should be
admitted because he "just closely monitored for EKG changes and rhythm
over did it" while working disturbances. Pt/ family teaching should begin on how
in the world. Lee's wife to identify an MI and basic CPR.
states to you that his chest
pain is more frequent,
severe and prolonged
than before. You should
anticipate what diagnosis?
• Exertional angina
• Unstable angina
• Variant angina
• Stable angina
,Stroke Volume is Contractility, preload and afterload
comprised of which of the
following factors?
• Blood volume, viscosity,
impedance
• Cardiac output, HR,
compliance
• Contractility, preload,
afterload
• Compliance, impedance,
HR
A reflex tachycardia BAINBRIDGE REFLEX
caused by the stretch of
the right atrial receptors is It is believed that this reflex exists to speed up the HR
known as the ____ if the right side becomes overloaded, thereby helping
• Herring-Sines law equalize pressures on both sides
• Renin-angiotensin system
• Starling's law
• Bainbridge reflex
2/3
Diastole comprises what &
of the cardiac cycle?
Some people that the heart is virtually static during
•½
diastole.
• 2/3
During this period, the cardiac vessels and chambers
•¼
fill—a process that takes up 2/3s of the time necessary
• 1/3
to complete the cardiac cycle
MAP=2(DBP) + (SBP)/3
What is the MAP (mean MAP=2(70) + 120/3
arterial pressure) for pt: MAP=260/3
BP 120/70 MAP=86.6
HR 80 Pts should maintain a MAP of at least 60 to ensure
adequate perfusion to the brain and kidneys.
, What is the MAP (mean MAP=2(70) + 120/3
arterial pressure) for pt: MAP=260/3
BP 120/70 MAP=86.6
HR 80 Pts should maintain a MAP of at least 60 to ensure
MAP=2(DBP) + (SBP)/3 adequate perfusion to the brain and kidneys.
Calculate CI (cardiac CI=CO/BSA
index) CO=HR X SV
HR 80 CO=80 X 60
BP 110/70 CI=4800/2.0
SV 60 CI=2400
BSA 2.0 m2 CI=2.4 L/min/m2
Expressed in L/min/m2
Calculate CI (cardiac CI=CO/BSA
index) CO=HR X SV
HR 80 CO=80 X 60
BP 110/70 CI=4800/2.0
SV 60 CI=2400
BSA 2.0 m2 CI=2.4 L/min/m2
Expressed in L/min/m2
CI=CO/BSA
The resistance against Pulmonary Vascular Resistance
which the right ventricle
must work to eject its This pressure represents a mean pressure in the
volume is known as systemic vasculature. The higher the resistance, the
• Resting heart pressure harder the heart has to work against it.
• Systemic vascular
pressure EXA: Colder temperatures will cause vasoconstriction;
• Central venous pressure the heart then has to pump harder to deliver blood
• Pulmonary vascular through the narrowed vasculature.
resistance
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