A nurse is caring for a patient who is receiving gentamicin IV for treatment of endocarditis caused by gram-negative bacteria.
Which laboratory value should be monitored closely during gentamicin therapy?
Serum creatinine
Serum potassium
Serum calcium
Serum glucose.
The Correct Answer is A
Gentamicin is an aminoglycoside antibiotic that can cause nephrotoxicity, which is damage to the kidneys. Serum creatinine is a measure of kidney function and should be monitored closely during gentamicin therapy. The normal range for serum creatinine is 0.6 to 1.2 mg/dL for men and 0.5 to 1.1 mg/dL for women.
Choice B is wrong because serum potassium is not affected by gentamicin.
The normal range for serum potassium is 3.5 to 5.0 mEq/L.
Choice C is wrong because serum calcium is not affected by gentamicin.
The normal range for serum calcium is 8.5 to 10.2 mg/dL.
Choice D is wrong because serum glucose is not affected by gentamicin.
The normal range for serum glucose is 70 to 110 mg/dL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A Mazzotti reaction is a severe inflammatory response that can occur after taking ivermectin for onchocerciasis (river blindness), a parasitic infection caused by Onchocerca volvulus.The reaction is due to the death of the microfilariae (larvae) of the parasite and can cause fever, rash, itching, joint pain, swollen lymph nodes, and eye inflammation.
Choice A is wrong because hypertension is not a common adverse effect of ivermectin.Hypotension, however, can occur in some cases.
Choice B is wrong because tinnitus is not a common adverse effect of ivermectin.Tinnitus is a ringing or buzzing sound in the ears that can be caused by various factors, such as exposure to loud noise, ear infections, or certain medications.
Choice D is wrong because Stevens-Johnson syndrome is not a common adverse effect of ivermectin.
Stevens-Johnson syndrome is a rare but serious skin reaction that can be triggered by infections or medications.
It causes blisters and peeling of the skin and mucous membranes.
Correct Answer is D
Explanation
Vancomycin is an antibiotic that can cause ototoxicity, which is damage to the inner ear due to exposure to certain drugs.Ototoxicity can manifest as tinnitus (ringing in the ears), vertigo (dizziness), and hearing loss.Vancomycin ototoxicity is usually related to high serum levels of the drug and is more likely to occur in patients with renal impairment.Vancomycin can also potentiate the ototoxicity of other drugs, such as aminoglycosides.
Choice A is wrong because tinnitus is a possible manifestation of ototoxicity.
Choice B is wrong because vertigo is a possible manifestation of ototoxicity.
Choice C is wrong because hearing loss is a possible manifestation of ototoxicity.
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