A nurse is preparing to administer lithium 300 mg PO every 8 hr. Available is lithium carbonate 150 mg capsules. How many capsules should the nurse administer per dose?
(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2"]
2 capsules
To calculate the number of capsules, use the formula:
capsules = (desired dose in mg / available dose in mg) x 1 capsule
Plug in the given values:
capsules = (300 mg / 150 mg) x 1 capsule
Simplify and solve:
capsules = 2 x 1 capsule
capsules = 2 capsules
Round to the nearest whole number and add a leading zero if needed:
capsules = 2 capsules
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","E"]
Explanation
These are important safety and comfort measures for a client who uses home oxygen therapy via a nasal cannula.
The other options are not correct because:
b. Verify the oxygen flow rate every other day. This is not frequent enough, as the flow rate should be checked at least daily and whenever the client feels short of breath or has changes in vital signs.
d. Apply petroleum ointment to nares if they become dry and irritated. This is not recommended, as petroleum products can ignite in the presence of oxygen and cause burns or fire. A water-based lubricant should be used instead.
Correct Answer is A
Explanation
Radiation therapy can cause immunosuppression, which increases the risk of infection. The nurse should monitor the client for signs of infection such as fever, chills, malaise, or purulent drainage.
- Examine the skin for generalized urticaria. This is not a common side effect of radiation therapy, as urticaria is an allergic reaction that causes hives or welts on the skin. Radiation therapy can cause localized skin irritation, erythema, or dryness, but not generalized urticaria.
- Review laboratory test results for low hemoglobin. This is not a direct effect of radiation therapy, as hemoglobin is a component of red blood cells that carries oxygen in the blood. Radiation therapy can cause anemia, which is a low number of red blood cells, but not necessarily low hemoglobin.
- Monitor the mouth for signs of xerostomia. This is not relevant for a client who receives radiation therapy to treat lung cancer, as xerostomia is dry mouth caused by reduced salivary gland function. This can occur in clients who receive radiation therapy to treat head and neck cancer, but not lung cancer.
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