During initial rounds, the nurse notes that a dobutamine infusion has extrava
sated into the forearm of a patient. After stopping the infusion, the nurse follows standing orders and immediately injects phentolamine (Regitine) subcutaneously in a circular fashion around the extravasation site. What is the mechanism of action of the phentolamine in this situation?
a. It neutralizes the extravasated dobutamine immediately.
b. It causes arterial vasoconstriction and reduced pain and swelling at the site.
c. It increases peripheral vascular resistance and reduces arterial pressure at the site.
d. It increases blood flow to the ischemic site by vasodilation to prevent tissue damage.
ANS: D
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The postoperative patient returned to the surgical nursing unit at 1:30 p.m. The evening shift nurse receives the report and begins working at 3:30 p.m. How often will the evening shift nurse take this patient's vital signs?
a. Immediately, then every 30 minutes for the next 2 hours b. Immediately, then every hour for the next 4 hours c. Every hour beginning 30 minutes from now until end of shift d. Immediately, then every 30 minutes 2 more times, then hourly
Fertilization takes place in the ampulla of the woman's fallopian tube when there is union of ovum and sperm. This union forms a zygote made up of:
A) 22 autosomes C) 23 mixed autosomes B) 46 chromosomes D) 44 chromosomes
The nurse notes that a patient is susceptible to chronic pulmonary diseases. What did the nurse assess to make this clinical decision?
1. The patient owned and worked a farm. 2. The patient worked in a hospital. 3. The patient as an air traffic controller. 4. The patient played in a band.
The nurse is counseling a group of first-trimester clients on diet increases that are necessary during pregnancy
Which information would be necessary to tell the pregnant women? Note: Credit will be given only if all correct choices and no incorrect choices are selected. Select all that apply. 1. An increase of protein is necessary to provide amino acids necessary for fetal development. 2. Protein contributes to the body's overall energy metabolism. 3. The recommended protein during pregnancy is 70 grams each day. 4. The increased amount of protein that a pregnant woman needs is 15 grams a day. 5. The quality of protein is as important as the amount.