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NUR 417 Exam 1 Questions and Answers with 100% Complete
Solutions UPDATED!!!
The standard policy on the cardiac unit states, "Notify the
health care provider for mean arterial pressure (MAP) less than
70 mm Hg." Which patient's status would the nurse report to
the health care provider?
1. Postoperative patient with a BP of 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. - ANSWER 1. Postoperative patient with a BP of 116/42
mm Hg.
The mean arterial pressure (MAP) is calculated using the
formula MAP = (systolic BP + 2 diastolic BP)/3. The MAP for the
postoperative patient is 67. The MAP in the other three patients
is higher than 70 mm Hg.
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Which hemodynamic parameter most directly reflects the
effectiveness of drugs given to reduce a patient's left ventricular
afterload?
1. Cardiac output (CO)
2. Systemic vascular resistance (SVR)
3. Pulmonary vascular resistance (PVR)
4. Pulmonary artery wedge pressure (PAWP) - ANSWER 2.
Systemic vascular resistance (SVR)
SVR reflects the resistance to left ventricular ejection, or
afterload. Other parameters may be monitored but do not
reflect left-sided afterload as directly.
After surgery, a patient's central venous pressure (CVP) monitor
indicates low pressures. Which action would the nurse take?
1. Administer IV diuretic medications.
2. Increase the IV fluid infusion per protocol.
3. Increase the infusion rate of IV vasodilators.
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4. Elevate the head of the patient's bed to 45 degrees. -
ANSWER 2. Increase the IV fluid infusion per protocol.
A low CVP indicates decreased preload from hypovolemia and a
need for an increase in the infusion rate. Diuretic administration
will contribute to hypovolemia and elevation of the head or
increasing vasodilators may decrease cerebral perfusion.
Which parameter will the nurse use to evaluate changes in a
patient's right ventricular afterload?
1. Central venous pressure (CVP)
2. Systemic vascular resistance (SVR)
3. Pulmonary vascular resistance (PVR)
4. Pulmonary artery wedge pressure (PAWP) - ANSWER 3.
Pulmonary vascular resistance (PVR)
PVR is a measure of right ventricular afterload, which is
elevated in conditions such as pulmonary hypertension The
other parameters do not directly assess for right ventricular
afterload.
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NUR 417 Exam 1 Questions and Answers with 100% Complete
Solutions UPDATED!!!
The standard policy on the cardiac unit states, "Notify the
health care provider for mean arterial pressure (MAP) less than
70 mm Hg." Which patient's status would the nurse report to
the health care provider?
1. Postoperative patient with a BP of 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. - ANSWER 1. Postoperative patient with a BP of 116/42
mm Hg.
The mean arterial pressure (MAP) is calculated using the
formula MAP = (systolic BP + 2 diastolic BP)/3. The MAP for the
postoperative patient is 67. The MAP in the other three patients
is higher than 70 mm Hg.
1|Page
,2|Page
Which hemodynamic parameter most directly reflects the
effectiveness of drugs given to reduce a patient's left ventricular
afterload?
1. Cardiac output (CO)
2. Systemic vascular resistance (SVR)
3. Pulmonary vascular resistance (PVR)
4. Pulmonary artery wedge pressure (PAWP) - ANSWER 2.
Systemic vascular resistance (SVR)
SVR reflects the resistance to left ventricular ejection, or
afterload. Other parameters may be monitored but do not
reflect left-sided afterload as directly.
After surgery, a patient's central venous pressure (CVP) monitor
indicates low pressures. Which action would the nurse take?
1. Administer IV diuretic medications.
2. Increase the IV fluid infusion per protocol.
3. Increase the infusion rate of IV vasodilators.
2|Page
, 3|Page
4. Elevate the head of the patient's bed to 45 degrees. -
ANSWER 2. Increase the IV fluid infusion per protocol.
A low CVP indicates decreased preload from hypovolemia and a
need for an increase in the infusion rate. Diuretic administration
will contribute to hypovolemia and elevation of the head or
increasing vasodilators may decrease cerebral perfusion.
Which parameter will the nurse use to evaluate changes in a
patient's right ventricular afterload?
1. Central venous pressure (CVP)
2. Systemic vascular resistance (SVR)
3. Pulmonary vascular resistance (PVR)
4. Pulmonary artery wedge pressure (PAWP) - ANSWER 3.
Pulmonary vascular resistance (PVR)
PVR is a measure of right ventricular afterload, which is
elevated in conditions such as pulmonary hypertension The
other parameters do not directly assess for right ventricular
afterload.
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