What is the role of thromboxane A (TXA2) in the secretion stage of hemostasis?
a. Stimulates the synthesis of serotonin.
b. Promotes vasodilation.
c. Stimulates platelet aggregation.
d. Promotes formation of cyclooxygenase.
Answer: c. Stimulates platelet aggregation.
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Which factor will influence a woman's self-concept during pregnancy and birth?
a. Parity c. Degree of perceived control b. Age d. Marital status
A patient is having skin testing done to assess for allergies. What would the nurse identify as evidence of exposure to an antigen?
1. itching at the site 2. area approximately 1 mm in diameter of induration and erythema 3. induration and erythema not evident until after 5 days 4. area larger than 10 mm of induration and erythema
Why does a patient who is taking drugs for thyroid suppression continue to have symptoms of hyperthyroidism for 3 weeks (or longer) after drug therapy is started?
a. Thyroid hormones are stored and thyroid suppressing drugs only stop the synthe-sis of new hormones. b. At first, the patient's metabolism is so high that the thyroid cells continue to syn-thesize thyroid hormones. c. The activity of the intestinal tract is increased and the drug is eliminated before complete suppression can occur. d. The side effects of thyroid suppression drugs are so uncomfortable that most pa-tients do not take the full dose of the drug that is needed to prevent further hor-mone secretion.
An initial step when preparing to conduct a literature review is to
a. choose the types of sources to use. b. clarify the purpose of the review. c. determine how many articles to review. d. select electronic data bases and keywords.