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 ["0.8"]
Explanation
To calculate the amount of mL to administer, the nurse should use the following formula:
(mg ordered / mg available) x mL available = mL to administer
Substituting the values from the question, the nurse should do the following:
(100 mg / 250 mg) x 2 mL = 0.8 mL

Correct Answer is ["A","B","D"]
Explanation
Answer: A, B D
Rationale:
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Albuterol is a bronchodilator, and one of its key effects is to relax the muscles around the airways, which helps prevent wheezing. Wheezing is often caused by narrowed airways, and by opening them, albuterol helps to prevent this sound, which is associated with asthma or other respiratory conditions.
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B. The medication will decrease coughing episodes:
Albuterol can help decrease coughing in individuals with conditions like asthma or chronic obstructive pulmonary disease (COPD) by relaxing the muscles in the airways, which reduces airway constriction. Since coughing often occurs due to airway obstruction, albuterol’s bronchodilator effect can help alleviate this symptom. -
C. The medication will reduce inflammation: Albuterol does not have anti-inflammatory properties. Its primary mechanism is bronchodilation, and anti-inflammatory treatment generally requires corticosteroids, not beta-agonists like albuterol.
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D. The medication will open the airways:
This is correct. Albuterol works as a bronchodilator, meaning it opens up the airways by relaxing the smooth muscles surrounding them. This improves airflow and makes breathing easier, which is why it is often used in conditions like asthma or COPD. -
E. The medication will stimulate flow of mucus: Albuterol does not stimulate mucus production; it primarily works by relaxing the airways. However, by improving airflow, it can help clients more effectively expel mucus through coughing.
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