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A nurse is assessing a client who has seasonal allergies and is taking an antihistamine. Which of the following findings is an adverse effect of this type of medication?

A.

Photophobia

B.

Diarrhea

C.

Dry mouth

D.

Increased blood pressure

Answer and Explanation

The Correct Answer is C

A. Photophobia: Photophobia is not a common side effect of antihistamines. It can be associated with other conditions, but not typically with antihistamine use.

 

B. Diarrhea: Diarrhea is not a common side effect of antihistamines; they are more likely to cause constipation due to their anticholinergic effects.

 

C. Dry mouth: Dry mouth is a common anticholinergic effect of antihistamines. It occurs because these medications block acetylcholine, leading to decreased saliva production.

 

D. Increased blood pressure: Increased blood pressure is not a typical side effect of antihistamines. While some formulations may cause increased heart rate or palpitations, they do not generally lead to hypertension directly.


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View Related questions

Correct Answer is A

Explanation

A. BUN 45 mg/dL and creatinine 8 mg/dL: These levels indicate significant kidney impairment; elevated BUN and creatinine levels are typical in chronic kidney disease.

B. BUN 8 mg/dL and creatinine 0.7 mg/dL: These values are within normal limits and suggest good kidney function, not indicative of chronic kidney disease.

C. BUN 10 mg/dL and creatinine 0.3 mg/dL: These values are much lower than expected in chronic kidney disease, indicating normal renal function.

D. BUN 23 mg/dL and creatinine 1.0 mg/dL: While these levels show mild elevation, they do not reflect the more severe impairment typically seen in chronic kidney disease.

Correct Answer is A

Explanation

A. Tachycardia: Theophylline can cause tachycardia as a side effect due to its stimulant properties.

B. Constipation: While gastrointestinal effects can occur, constipation is not a common or significant adverse effect of theophylline.

C. Oliguria: Theophylline is more likely to cause diuresis rather than oliguria.

D. Drowsiness: Theophylline typically causes stimulation rather than sedation, leading to increased alertness rather than drowsiness.

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