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 ["A","D","E"]
Explanation
A. Ask the client if she has any alcohol in the room at this time: This is an essential step in assessing for immediate safety and contraband that may impact her treatment plan, especially considering her symptoms and possible withdrawal risk.
B. Administer a PRN prescription for an antianxiety drug: This could mask symptoms of alcohol withdrawal or interact negatively with alcohol. Medication should be given only after thorough assessment and consultation.
C. Inform the family that they are enabling the client: While family education is important, using accusatory language like "enabling" can damage therapeutic relationships. A nonjudgmental, supportive approach is better.
D. Observe for signs to determine if client is inebriated: Monitoring for inebriation supports accurate clinical assessment and decisions about withdrawal protocols, safety, and medication timing.
E. Schedule a conference with the client and family members: A joint meeting allows open discussion, identifies care goals, and promotes understanding and support from all parties involved.
Correct Answer is A
Explanation
A. Glucose and calcium levels: During thyrotoxic crisis, the body’s metabolism is increased, which can lead to hyperglycemia. Additionally, calcium levels may fluctuate due to the impact of thyroid hormones on bone metabolism, making these values critical to monitor.
B. Electrolytes and hemoglobin: While monitoring electrolytes is important, they are not the most critical values in a thyrotoxic crisis. Hemoglobin levels are not directly impacted by thyroid storm and are less likely to provide essential insights for managing this condition.
C. Renal and liver function tests: While important for general health monitoring, renal and liver function tests are not the most critical in the immediate management of a thyrotoxic crisis. The focus should be on metabolic and electrolyte imbalances rather than organ function tests.
D. Blood and urine cultures: Blood and urine cultures are used to detect infections, they are not a priority during a thyrotoxic crisis unless there is a concern about infection. The primary focus should be on managing thyroid hormone levels and associated metabolic effects.
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