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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Liver function tests: While lithium can affect liver function in some cases, routine liver function tests are not typically required before administering lithium. These tests are more relevant for medications metabolized by the liver.
B. Thyroid hormone assay: This is the correct action. Regular monitoring of thyroid function, including thyroid hormone levels, is essential for clients taking lithium, as lithium therapy can lead to hypothyroidism or exacerbate preexisting thyroid conditions. Checking thyroid function before administering lithium helps ensure the client's thyroid status is within the therapeutic range and identifies any abnormalities that may require intervention.
C. Erythrocyte sedimentation rate (ESR): ESR is a nonspecific marker of inflammation and is not directly relevant to monitoring lithium therapy. While lithium can affect renal function and electrolyte balance, ESR does not specifically assess these parameters.
D. Brain natriuretic peptide (BNP): BNP is a marker of cardiac function and is not routinely monitored in clients taking lithium. While lithium can have cardiovascular effects, routine BNP testing is not necessary before administering lithium. Monitoring for cardiovascular side effects of lithium typically involves assessing for symptoms such as arrhythmias or changes in blood pressure and heart rate.
Correct Answer is C
Explanation
To determine the total number of units of insulin to prepare in the insulin syringe, add together the prescribed doses of regular insulin and NPH insulin.
Regular insulin: 14 units NPH insulin: 28 units
Total: 14 units (regular insulin) + 28 units (NPH insulin) = 42 units
Therefore, the nurse should prepare a total of 42 units of insulin in the insulin syringe: 14 units of regular insulin and 28 units of NPH insulin
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