A nurse is caring for a client receiving cholinergic medications to assist in the treatment of myasthenia gravis. Which contraindication will the nurse assess for prior to administering a cholinergic medication?

Asthma

Hypertension

Alzheimer's

Diarrhea

Answer and Explanation

The Correct Answer is A

A. Asthma is a contraindication for cholinergic medications because these drugs can cause bronchoconstriction and may exacerbate respiratory conditions. Careful assessment is necessary before administration to ensure safety.
B. Hypertension is not a direct contraindication for cholinergic medications; they may not significantly affect blood pressure in most cases.
C. Alzheimer's disease is not a contraindication for cholinergic medications; in fact, cholinergic agents may be used to improve cognitive function in some patients with dementia.
D. Diarrhea is not a contraindication for cholinergic medications but may indicate excessive cholinergic activity; it should be monitored, but it does not prevent administration.

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Correct Answer is B

Explanation

A. Discontinuing metformin 24 hours before a CT scan is longer than necessary and not standard practice.
B. It is generally recommended that metformin be held for at least 12 hours before the administration of IV contrast to reduce the risk of lactic acidosis, especially in clients with renal impairment.
C. Six hours is insufficient time to ensure the medication is cleared from the system, considering the potential risks.
D. Discontinuing metformin for 48 hours is overly cautious and not necessary unless there are complications that arise after the contrast is administered.

A. morphine B. famotidine (Pepcid) C. misoprostol (Cytotec) D. ibuprofen (Advil)

Correct Answer is C

Explanation

A. Morphine is a category C medication, which means it may be used if the benefits outweigh the risks; it is not contraindicated in pregnancy.
B. Famotidine (Pepcid) is also a category B medication and is generally considered safe to use during pregnancy.
C. Misoprostol (Cytotec) is classified as category X due to its association with causing uterine contractions and the potential for fetal harm; thus, it should be avoided during pregnancy.
D. Ibuprofen (Advil) is a category C medication, and while it is not typically recommended in the third trimester, it is not classified as category X.

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A nurse is caring for a client receiving cholinergic medications to assist in the treatment of myasthenia gravis. Which contraindication will the nurse assess for prior to administering a cholinergic medication?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A diabetic client who is currently taking metformin is ordered a computerized tomography (CT) scan with contrast. The nurse understands that the client's metformin should be discontinued how many hours before receiving intravenous (IV) contrast?

Correct Answer is B

Explanation

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Correct Answer is C

Explanation

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