Antimigraine agents act by:
1. blocking parasympathetic nerve impulses.
2. increasing cerebral blood flow.
3. constricting dilated cerebral arteries.
4. exerting a sympathomimetic effect.
3
Adrenergic-blocking agents dilate the veins in smooth-muscle tissue in the peripheral vascular system and the uterus. This reduces cerebral blood flow and arterial pulsing, which reduces the headache pain.
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The nurse is administering a purified protein derivative (PPD) test to a homeless patient. Which of the following statements concerning PPD testing is true?
A) A positive reaction indicates that the patient has active tuberculosis (TB). B) A positive reaction indicates that the patient has been exposed to the disease. C) A negative reaction always excludes the diagnosis of TB. D) The PPD can be read within 12 hours after the injection.
The nurse is using the Lund and Browder chart to estimate the total body surface area burned on a patient. Which type of burn will not be included in this calculation?
1. superficial partial-thickness 2. deep-partial thickness 3. superficial 4. full-thickness
A client is prescribed aldactazide. When preparing to teach the client about the medication, the nurse understands that this agent is a:
a. combination loop and thiazide diuretic agent. b. the same agent as bumetanide and hydrochlorothiazide (HCTZ). c. combination of osmotic and potassium-sparing diuretic. d. combination potassium-sparing and thiazide diuretics.
A nurse working on an Alzheimer's unit notes that just before the supper hour, many of the residents become more anxious and confused-exhibiting typical "sundowner's syndrome"-making the evening meal an unpleasant ordeal
As a method to try to decrease their turmoil during this time, the nurse introduces which therapy into the daily routine? 1. Biofeedback 2. Music therapy 3. Pilates 4. Spiritual therapy