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
Explanation
Answer: A
Rationale:
A) Administering a nebulized beta-adrenergic:
In the case of an acute asthma exacerbation, administering a nebulized beta-adrenergic agonist (such as albuterol) is the highest priority. These medications act quickly to relax bronchial smooth muscle, dilate airways, and improve airflow. This intervention directly addresses the underlying bronchospasm and helps to alleviate the acute symptoms of asthma.
B) Providing immediate rest for the client:
While rest is important in managing an acute asthma exacerbation, it is not the immediate priority. Addressing the airway obstruction with appropriate medications is crucial for stabilizing the client's condition before focusing on comfort measures such as rest.
C) Positioning the client in high-Fowler's:
Positioning the client in a high-Fowler's position can help improve lung expansion and facilitate breathing. However, this action is secondary to administering medication that can relieve the acute symptoms of bronchoconstriction. The medication should be administered first to rapidly address the exacerbation.
D) Initiating oxygen therapy:
Oxygen therapy might be necessary if the client shows signs of hypoxemia or severe respiratory distress. However, the immediate priority is to address the bronchospasm with a nebulized beta-adrenergic agonist to improve airflow. Once the acute bronchospasm is managed, oxygen therapy can be implemented if needed to support oxygen saturation.
Correct Answer is C
Explanation
Discarding the toothbrush and buying another is a way to prevent disease transmission, as the toothbrush can harbor bacteria and reinfect the child or spread the infection to others. The toothbrush should be discarded after 24 hours of antibiotic therapy.
a) Encouraging the child to drink lots of fluids is a way to promote hydration and soothe the throat, but it does not prevent disease transmission. The child should avoid sharing cups or utensils with others and use disposable tissues or paper towels.
b) Taking the child's temperature every 4 hours is a way to monitor fever, but it does not prevent disease transmission. The thermometer should be cleaned and disinfected after each use and not shared with others.
d) Giving the child Tylenol for the pain is a way to relieve discomfort, but it does not prevent disease transmission. The medication should be administered according to the label instructions and not shared with others.

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