The prescription reads for diphenhydramine 10 mg PO every 4-6 hours as needed for runny nose and allergy symptoms. Using the label below, how many mL will the nurse teach the parent to administer? Enter a numeric value only. Answer to the nearest whole mL
The Correct Answer is ["4"]
1. Determine the concentration of the diphenhydramine:
The label states 12.5 mg/5 mL.
2. Set up a proportion to find the volume (in mL) needed:
12.5 mg / 5 mL = 10 mg / x mL
3. Solve for x:
Cross-multiply: 12.5x = 10 * 5
12.5x = 50
x = 50 / 12.5
x = 4 mL
Answer: The nurse should teach the parent to administer 4 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["4"]
Explanation
1. Determine the concentration of the diphenhydramine:
The label states 12.5 mg/5 mL.
2. Set up a proportion to find the volume (in mL) needed:
12.5 mg / 5 mL = 10 mg / x mL
3. Solve for x:
Cross-multiply: 12.5x = 10 * 5
12.5x = 50
x = 50 / 12.5
x = 4 mL
Answer: The nurse should teach the parent to administer 4 mL.
Correct Answer is D
Explanation
A) This medication neutralizes gastric acid in the stomach by direct contact: Sucralfate does not neutralize gastric acid. Instead, it works by forming a protective barrier over the ulcer, which helps protect it from further damage by stomach acid and promotes healing. Sucralfate is a mucosal protectant, not an acid-neutralizing agent.
B) "You should take this medication after meals to help limit gastric acid secretion": Sucralfate should be taken on an empty stomach, typically 30 minutes to 1 hour before meals, to allow it to form an effective protective barrier over the ulcer. Taking it after meals would interfere with its action and effectiveness.
C) "This medication decreases gastric acid production by blocking histamine 2 receptors": Sucralfate does not work by blocking histamine 2 receptors. Histamine 2 receptor antagonists, such as ranitidine, work by reducing gastric acid secretion. Sucralfate works by coating and protecting the ulcer rather than by reducing acid production.
D) "You should take this medication 30 minutes to 1 hour before meals and at bedtime": Sucralfate should be taken on an empty stomach, typically 30 minutes to 1 hour before meals and at bedtime. This timing ensures that the medication can form an effective barrier over the ulcer before food intake and helps maximize its healing properties.
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