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
Montelukast is an oral leukotriene receptor antagonist that prevents inflammation and bronchoconstriction in asthma. It is taken once daily in the evening to prevent nocturnal symptoms and improve morning lung function.
- "I rinse my mouth after taking this medication." This is not necessary, as montelukast is not associated with oral thrush or dysgeusia, unlike some inhaled corticosteroids.
- "I use a spacer device when I inhale this medication." This is not applicable, as montelukast is not an inhaler, but a tablet or chewable form.
- "I take this medication when I get an asthma attack." This is not appropriate, as montelukast is not a rescue medication, but a maintenance medication that should be taken regularly to prevent asthma exacerbations. A short-acting beta2 agonist such as albuterol should be used for acute relief of symptoms.
Correct Answer is B
Explanation
Pursed-lip breathing is a technique that helps clients with COPD to exhale more effectively and prevent air trapping in the lungs. It also reduces dyspnea and improves oxygenation.
a) A low protein diet is not recommended for clients with COPD, as they need adequate protein intake to maintain muscle mass and prevent malnutrition.
c) Fluid restriction is not necessary for clients with COPD, unless they have signs of fluid overload or heart failure. Adequate hydration helps to thin secretions and facilitate expectoration.
d) Early-morning hours are not the best time for exercise and activity for clients with COPD, as they may experience more shortness of breath and fatigue due to diurnal variations in lung function. A better time would be mid-morning or afternoon, after taking bronchodilators and clearing secretions.
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