An adult client receives a prescription for diphenhydramine 15 mL PO every 12 hours PRN for pruritus. The bottle is labeled, "Diphenhydramine 12.5 mg/5 mL." What is the total daily dose in mg that the client receives? (Enter numerical value only.)
The Correct Answer is ["75"]
Dose per administration in milliliters = 15 mL.
Concentration of the medication = 12.5 mg/5 mL.
- Calculate the amount of medication in milligrams (mg) per administration.
Amount per administration (mg) = Dose per administration (mL) × (Concentration (mg) / Volume (mL))
= 15 mL × (12.5 mg / 5 mL)
= 15 mL × 2.5 mg/mL
= 37.5 mg.
- Determine the number of doses per day.
Doses are given every 12 hours, so Number of doses per day = 24 hours / 12 hours/dose
= 2 doses/day.
- Calculate the total daily dose in milligrams (mg).
Total daily dose (mg) = Amount per administration (mg) × Number of doses per day
= 37.5 mg × 2 doses
= 75 mg.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Iron-rich meats: While iron is essential for preventing anemia, it does not contribute significantly to bone mineral density. These foods are not a primary recommendation for osteoporosis prevention, which focuses on calcium and vitamin D intake.
B. Water and herbal teas: Adequate hydration is important for overall health, but water and herbal teas do not contain the calcium or vitamin D needed to support bone health. They have minimal direct impact on preventing osteoporosis.
C. Low fat dairy products: Low fat dairy products like milk, yogurt, and cheese are rich in calcium and often fortified with vitamin D—both critical nutrients for maintaining bone density and preventing osteoporosis.
D. Fresh fruits and vegetables: Fruits and vegetables provide general nutritional support, but are not the most concentrated sources of bone-building nutrients like calcium. They support health broadly but are not the key dietary focus for osteoporosis.
Correct Answer is D
Explanation
A. Abdominal cramping: Abdominal cramping can be a common symptom of gastritis and may not necessarily require immediate reporting unless it is severe or accompanied by other concerning symptoms.
B. Low grade fever: A low-grade fever can occur with gastritis as part of the inflammatory response, but it is not an immediate concern unless it persists or worsens. It is generally not as urgent as other symptoms.
C. Bruising of the skin: Bruising is not a typical symptom of gastritis. It may be indicative of a bleeding disorder or other underlying issues unrelated to the gastrointestinal system. However, it is not directly associated with gastritis.
D. Bloody emesis: Bloody emesis (vomiting blood) is a critical sign that indicates possible gastrointestinal bleeding, which can occur with severe gastritis. This is an emergency situation and should be reported immediately as it requires urgent medical attention.
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