Complete the equation: Cardiac output = Volume of blood ejected at each heartbeat × ____.
A. Stroke volume
B. Preload
C. Afterload
D. Heart rate
Answer: D. Heart rate
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A woman who is 24 weeks pregnant is placed on an intravenous infusion of magnesium sulfate. What side effect should the nurse inform the patient that she might experience?
a. Nausea and vomiting b. Headache c. Warm flush d. Urinary frequency
A shift to the left of the oxyhemoglobin dissociation curve would cause which of the following?
a. Better tissue perfusion c. Decreased hemoglobin affinity for O2 b. Lower SpO2 d. Impaired tissue oxygen delivery
The nurse instructs the patient about scheduled surgery involving general anesthesia and about postoperative care. Which should the nurse include in patient teaching?
a. Determine patient preference about pain medication. b. Avoid eating or drinking anything 2 hours before surgery. c. Ask for antianxiety medication in the op-erating room. d. Follow the rules for beginning to exercise after the incision has healed.
Assuming that midline epigastric pain is caused by a stimulus acting on an abdominal organ, the pain felt is classified as:
a. visceral. b. somatic. c. parietal. d. referred.