NUR 417 Exam 1 Questions and Answers

NUR 417 Exam 1
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1. The standard policy on the cardiac unit 1. Postoperative patient with a BP of 116/42 mm
states, "Notify the health care provider Hg.
for mean arterial pressure (MAP) less
than 70 mm Hg." Which patient's status The mean arterial pressure (MAP) is calculated
would the nurse report to the health using the formula MAP = (systolic BP + 2 diastolic
care provider? BP)/3. The MAP for the postoperative patient is
67. The MAP in the other three patients is higher
1. Postoperative patient with a BP of than 70 mm Hg.
116/42 mm Hg.
2. Newly admitted patient with a BP of
150/87 mm Hg.
3. Patient with left ventricular failure
who has a BP of 110/70 mm Hg.
4. Patient with a myocardial infarction
who has a BP of 140/86 mm Hg.

2. Which hemodynamic parameter most 2. Systemic vascular resistance (SVR)
directly reflects the effectiveness of
drugs given to reduce a patient's left SVR reflects the resistance to left ventricular ejec-
ventricular afterload? tion, or afterload. Other parameters may be
monitored but do not reflect left-sided afterload
1. Cardiac output (CO) as directly.
2. Systemic vascular resistance (SVR)
3. Pulmonary vascular resistance (PVR)
4. Pulmonary artery wedge pressure
(PAWP)

3. After surgery, a patient's central ve- 2. Increase the IV fluid infusion per protocol.
nous pressure (CVP) monitor indicates
low pressures. Which action would the A low CVP indicates decreased preload from hy-
nurse take? povolemia and a need for an increase in the
infusion rate. Diuretic administration will con-



, NUR 417 Exam 1
Study online at https://quizlet.com/_hz96g7

1. Administer IV diuretic medications. tribute to hypovolemia and elevation of the head
2. Increase the IV fluid infusion per pro- or increasing vasodilators may decrease cerebral
tocol. perfusion.
3. Increase the infusion rate of IV va-
sodilators.
4. Elevate the head of the patient's bed
to 45 degrees.

4. Which parameter will the nurse use to 3. Pulmonary vascular resistance (PVR)
evaluate changes in a patient's right
ventricular afterload? PVR is a measure of right ventricular afterload,
which is elevated in conditions such as pul-
1. Central venous pressure (CVP) monary hypertension The other parameters do
2. Systemic vascular resistance (SVR) not directly assess for right ventricular afterload.
3. Pulmonary vascular resistance (PVR)
4. Pulmonary artery wedge pressure
(PAWP)

5. The nurse is assisting with the place- 2. PA wedge pressure (PAWP) waveform
ment of a pulmonary artery (PA)
catheter. What would the nurse expect The purpose of a PA line is to measure PAWP,
to see on the monitor during the proce- so the catheter is floated through the pulmonary
dure as an indication that the catheter artery until the dilated balloon wedges in a distal
with inflated balloon is placed correct- branch of the pulmonary artery, and the PAWP
ly? readings are available. After insertion, the bal-
loon is deflated, and the PA waveform will be ob-
1. PA pressure waveform served. Systemic arterial pressures are obtained
2. PA wedge pressure (PAWP) wave- using an arterial line, and the systemic vascular
form resistance is a calculated value, not a waveform.
3. Tracing of the systemic arterial pres-
sure