A patient taking magnesium citrate as an osmotic laxative reports abdominal cramping and diarrhea. What should the nurse recommend?
Increase fluid intake
Continue the medication; these are expected side effects
Discontinue the medication and consult a healthcare provider
Switch to a different type of laxative
The Correct Answer is B
A. Increasing fluid intake may not alleviate the cramping and diarrhea, which are common side effects of magnesium citrate.
B. Abdominal cramping and diarrhea are expected side effects of magnesium citrate, and the patient can continue the medication unless symptoms become severe.
C. Discontinuing the medication should not be recommended unless the side effects are intolerable or the patient experiences severe reactions.
D. Switching to a different type of laxative is unnecessary unless the patient has contraindications to magnesium citrate or develops severe side effects.
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Correct Answer is C
Explanation
A. Chest pain and pale skin are not typical adverse effects associated with diltiazem use.
B. Shortness of breath and wheezing may occur due to other conditions or medications but are not common adverse effects of diltiazem.
C. Calcium channel blockers like diltiazem can cause peripheral edema due to vasodilation and bradycardia as a result of their action on the heart rate. Monitoring for these effects is essential in patients taking diltiazem.
D. Tachycardia is not an expected adverse effect of diltiazem; in fact, it is used to manage conditions where tachycardia may be present. Anxiety is also not a direct adverse effect of this medication.
Correct Answer is D
Explanation
A. While historical context is useful, the development of antimicrobials primarily began in the early 20th century, notably with penicillin discovered by Alexander Fleming in 1928.
B. This statement is incorrect; fluoroquinolones primarily inhibit bacterial DNA synthesis rather than directly affecting the cell wall.
C. Selective toxicity is a principle of antimicrobial action but does not directly explain how a specific antimicrobial works therapeutically.
D. Penicillin specifically interferes with the synthesis of the bacterial cell wall, leading to cell lysis and death of the bacteria, which is a fundamental mechanism of action for this antibiotic.