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. Only 30% of clients did not attend self-management education sessions: This outcome does not directly indicate the effectiveness of a tertiary prevention program, which focuses on managing disease complications and improving quality of life after diagnosis.
B. Average client scores improved on specific risk factor knowledge tests: Improved knowledge is important, but tertiary prevention aims more at managing and reducing the impact of complications in individuals who already have the disease.
C. Clients who developed disease complications promptly received rehabilitation: Tertiary prevention focuses on minimizing the impact of established disease and preventing further disability. Effective rehabilitation for clients with complications demonstrates successful tertiary prevention.
D. More than 50% of at-risk clients were diagnosed early in their disease process: Early diagnosis falls under secondary prevention, not tertiary. Secondary prevention aims to identify and treat disease early to prevent complications, not managing existing complications.
Correct Answer is D
Explanation
A. Ensure supplemental oxygen and respiratory medications are available at all times: Access to medications and oxygen is essential for managing acute symptoms, but this measure focuses on treatment, not prevention.
B. Use nasal or cough tissues followed by handwashing at all times: Proper hygiene can limit infection spread, but it does not offer strong enough protection alone. It is supportive but not the most comprehensive or impactful preventive measure for respiratory clients.
C. Avoid large crowded areas during the colder months of the year: Crowd avoidance can reduce exposure to respiratory infections, but it is a general guideline. Immunizations offer more reliable protection against the common causes of exacerbations in clients with chronic respiratory diseases.
D. Get annual flu and Pneumococcal vaccine polyvalent (PPSV23) vaccines: Vaccinations are the most important preventive step for clients with chronic respiratory conditions. These clients are at high risk for complications from influenza and pneumococcal infections, and immunization significantly lowers the incidence and severity of these diseases.
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