The nurse is caring for a patient with severe symptomatic intestinal amebiasis who has just completed a 10-day course of metronidazole (Flagyl). Which medication would the nurse expect to be ordered for the patient?
a. Pentamidine (Pentam)
b. Iodoquinol (Yodoxin)
c. Atovaquone (Mepron)
d. Nitazoxanide (Alinia)
ANS: B
The metronidazole concentration in the stomach remains low, therefore some amoebas survive. Using iodoquinol as the subsequent drug achieves high concentrations, killing the remaining amoebas.
Pentamidine, atovaquone, and nitazoxanide are indicated for treatment of diseases other than amebiasis.
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A) Increased gastric secretion of HCl and gastrin because of high osmolality of feeds B) Entry of large amounts of water into the small intestine because of osmotic pressure C) Mucosal irritation of the stomach and small intestine by the high concentration of the feed D) Acid–base imbalance resulting from the high volume of solutes in the feed
The client with a chronic ear problem experiences vertigo frequently. Which action should the nurse suggest to reduce the sensations produced by vertigo?
A. Maintain adequate hydration. B. Restrict head motions. C. Keep the room dark. D. Instill ear drops.
An individual's inability to recognize reality, a demonstration of bizarre behaviors, and an inability to deal with life's demands is known to be suffering from which of the following conditions?
A. psychosis B. dysthymia C. major depression D. catatonia
Behavioral or conditioned tolerance can be considered to be an important contributor to which drug-taking phenomenon?
A. lethal overdoses B. improved responses to a drug C. the placebo effect D. increased sensitivity to a drug