A nurse is caring for a client who has heart failure and a prescription for digoxin 125 mcg PO daily. Available is digoxin PO 0.25 mg/tablet. How many tablets should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.5"]
Let's convert the digoxin dosage from mcg (micrograms) to mg (milligrams) and then divide it by the amount of digoxin per tablet to find out how many tablets are needed.
Steps to solve:
- Convert digoxin dose from mcg to mg:
- We know 1 mg is equal to 1000 mcg.
- Digoxin dose (mg) = Digoxin dose (mcg) / 1000 mcg/mg
- Digoxin dose (mg) = 125 mcg / 1000 mcg/mg
- Digoxin dose (mg) = 0.125 mg
- Calculate the number of tablets required:
- Number of tablets = Digoxin dose (mg) / Digoxin per tablet (mg)
- Number of tablets = 0.125 mg / 0.25 mg/tablet
Since the result is 0.5, we need to round to the nearest tenth.
Answer: The nurse should administer 0.5 tablets per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["175"]
Explanation
We are asked to calculate the dosage of cephazolin for a 1-month-old infant based on their weight.
Steps to solve: 1. Identify the given values:
- Dose per kg = 50 mg/kg
- Weight of the infant = 3500 g
2. Set up the formula: Dosage (mg) = Dose per kg (mg/kg) × Weight (kg)
3. Since the weight is given in grams, convert it to kilograms: 3500 g / 1000 g/kg = 3.5 kg
4. Substitute the known values into the formula and calculate: Dosage (mg) = 50 mg/kg × 3.5 kg Dosage (mg) = 175 mg
5. Round the answer to the nearest tenth: Dosage (mg) = 175.0 mg
The nurse should administer 175.0 mg of cephazolin per dose.
Correct Answer is A
Explanation
A. "I will be sure to take the albuterol before taking the cromolyn": Taking albuterol before cromolyn is the correct sequence because albuterol is a bronchodilator that helps open the airways quickly, while cromolyn is a mast cell stabilizer that helps prevent asthma symptoms. Taking albuterol first allows for better penetration of cromolyn into the airways. Therefore, this statement indicates an understanding of the appropriate sequence for using the medications.
B. "I will use both medications immediately after exercising": While it is essential to use albuterol before exercise to prevent exercise-induced bronchospasm, using cromolyn immediately after exercise is not typically indicated. Cromolyn is more effective when used prophylactically to prevent asthma attacks triggered by allergens or exercise rather than as an acute rescue medication.
C. "If my breathing begins to feel tight, I will use the cromolyn immediately": Cromolyn is not indicated for the immediate relief of acute bronchospasm. It works best when used regularly to prevent asthma symptoms rather than as a rescue medication during an asthma attack. Albuterol is the appropriate choice for immediate relief of tightness or wheezing.
D. "I will administer the medications 10 minutes apart": While it's important to space out the administration of different medications to ensure proper absorption and effectiveness, the specific timing between albuterol and cromolyn may vary based on individual instructions from the healthcare provider. Generally, it's recommended to take albuterol first, followed by cromolyn after a brief interval.
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