Deck 48: Antimalarial, Antiprotozoal, and Anthelmintic Drugs

Question 1

A woman is travelling to a country that poses a high risk for malarial infections.What important information should the nurse teach her regarding prophylactic therapy with chloroquine for her child?

A)The medication is better absorbed and has fewer adverse effects if taken on an empty stomach.
B)This drug should be started 3 weeks before exposure but can be discontinued after the patient leaves the area.
C)This drug is to be taken only when mosquito bites are seen, because it can have toxic effects if taken unnecessarily.
D)This drug is usually started 1 week before exposure to malarial areas and continued for 4 weeks after the patient leaves the area.

Answer 1

This drug is usually started 1 week before exposure to malarial areas and continued for 4 weeks after the patient leaves the area.

Question 2

A patient is travelling to a country where malaria is endemic.Which antimalarial drug will a health care provider likely recommend as prophylaxis?

A)quinine sulphate
B)chloroquine diphosphate
C)mefloquine hydrochloride
D)primaquine phosphate

Answer 2

mefloquine hydrochloride

Question 3

Which statement about anthelmintic therapy is true?

A)Anthelmintics may cause severe drowsiness.
B)Anthelmintics are very specific in their actions.
C)Anthelmintics are effective against broad classes of infestations.
D)Anthelmintics are used to treat protozoal infections, such as intestinal amoebiasis.

Answer 3

Anthelmintics are very specific in their actions.

Question 4

A patient who has started therapy with quinine and tetracycline for treatment of malaria asks the nurse why an antibiotic has been prescribed when malaria is caused by a parasite.What is the nurse's best explanation to the patient?

A)The tetracycline prevents reinfection with the malaria parasite.
B)The antibiotic is combined with quinine to reduce the adverse effects of the quinine.
C)An antibacterial drug prevents the occurrence of superinfection during antimalarial therapy.
D)The combination of both drugs takes advantage of their synergistic protozoacidal effects.

Question 5

Which drug is used for the treatment of Pneumocystis jirovecii pneumonia in late-stage human immunodeficiency virus infection?

A)iodoquinol
B)pentamidine
C)praziquantel (Biltricide)
D)metronidazole (Flagyl)

Question 6

Which drug is used to kill flukes?

A)praziquantel (Biltricide)
B)Pyrantel pamoate (Combantrin)
C)mebendazole (Vermox)
D)diethylcarbamazine

Question 7

A patient is prescribed metronidazole (Flagyl)to treat the most common intestinal protozoal infection,caused by Giardia lamblia.What important information should the nurse give the patient about using this drug?

A)The urine may become dilute and pale during therapy.
B)Taking the medications with food reduces gastrointestinal upset.
C)The medication should be taken on an empty stomach.
D)The drug may be discontinued once the diarrhea subsides.

Question 8

Certain antimalarial drugs work only during specific phases of the parasite's life cycle.Drugs that work in the "tissue" phase are known as ____________ drugs.

Question 9

A patient has giardiasis.The health care provider has prescribed metronidazole.What adverse effect should the nurse tell the patient about?

A)Vertigo
B)Seizures
C)Diarrhea
D)Insomnia

Question 10

A patient is prescribed anthelmintic therapy.Which adverse effect should the nurse tell this patient about?

A)Nervousness
B)Nausea
C)Decreased appetite
D)Constipation