When teaching a client about propranolol hydrochloride, the nurse should base the information on the knowledge that propranolol hydrochloride:
a. Blocks beta-adrenergic stimulation and thus causes decreased heart rate, myocardial contractility, and conduction.
b. Increases norepinephrine secretion and thus decreases blood pressure and heart rate.
c. Is a potent arterial and venous vasodilator that reduces peripheral vascular resistance and lowers blood pressure.
d. Is an angiotensin-converting enzyme inhibitor that reduces blood pressure by blocking the conversion of angiotensin I to angiotensin II.
Answer: a. Blocks beta-adrenergic stimulation and thus causes decreased heart rate, myocardial contractility, and conduction.
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A 64-year-old patient in hypertensive crisis is to receive furosemide (Lasix) 40 mg IV. Lasix comes in 100 mg/10 mL containers. How will the nurse administer the medication?
A) Give 4 mL over 1 to 2 minutes IV. B) Give 4 mL over 10 minutes. C) Flush the line with normal saline, give 1 mL/min, flush again when finished. D) Fix 10 mL in an IV piggyback and deliver it over 30 minutes.
Desensitization of receptors of a cell is also termed:
A. hypersensitivity. B. down-regulation. C. intrinsic activity. D. selectivity.
An aging client with severe schizophrenia takes a beta-adrenergic blocking agent (propranolol) for hypertension as well as an antipsychotic. Given the combined side effects of these drugs, what teaching should the nurse provide?
A) Make sure you concentrate on taking slow, deep, cleansing breaths. B) Watch your diet and try to engage in some regular physical activity. C) Rise slowly when you change position from lying to sitting or sitting to standing. D) Wear sunscreen and try to avoid midday sun exposure.
In clinical problem solving, the process involved in decision making is one of:
a. deductive reasoning. b. inductive reasoning. c. Socratic questioning. d. none of the above.