Phenothiazine medications exert their antiemetic properties by:
A) promoting the secretion of hormones in the brain that depress the function of the medulla oblongata.
B) antagonizing dopaminergic receptor sites in the brain, which suppresses the function of the hypothalamus.
C) blocking histamine-2 receptors, which inhibits gastric acid production and slows peristalsis.
D) activating dopaminergic receptors in the brain and releasing hormones that depress the reticular activating system.
Answer: D) activating dopaminergic receptors in the brain and releasing hormones that depress the reticular activating system.
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A patient, age 78, has been admitted to the hospital with dehydration and electrolyte imbalance. She is confused and incontinent of urine on admission. Which nursing intervention does the nurse include in developing a plan of care?
a. Restrict fluids after the evening meal. b. Insert an indwelling catheter. c. Assist the patient to the bathroom every 2 hours. d. Apply absorbent incontinence pads.
Which combination of expressing pain could be demonstrated in a neonate?
a. Low-pitched crying, tachycardia, eyelids open wide b. Cry face, flaccid limbs, closed mouth c. High-pitched, shrill cry, withdrawal, change in heart rate d. Cry face, eye squeeze, increase in blood pressure
A client asks the nurse why it is important to be weighed every day if he has right-sided heart failure. What is the nurse's best response?
a. "Weight is the best indication that you are gaining or losing fluid." b. "Daily weights will help us make sure that you're eating properly." c. "The hospital requires that all inpatients be weighed daily." d. "You need to lose weight to decrease the incidence of heart failure."
An older patient's BUN is 28 mg/dL and creatinine is 0.6 mg/dL. How does the nurse interpret these findings?
a. Normal for all age groups b. Normal for older adults c. High for all age groups d. Low for older adults