A nurse is providing discharge teaching to the parent of a child who is prescribed diphenhydramine 25 mg elixir every 4 hr as needed. The amount available is diphenhydramine elixir 12.5 mg/5 mL. How many mL 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 ["10"]
To determine the mL of diphenhydramine elixir to administer per dose, we need to calculate the dose based on the prescribed amount and the concentration of the elixir.
Given:
Prescribed dose: 25 mg Concentration of elixir: 12.5 mg/5 mL
We can set up a proportion to find the equivalent mL for the prescribed dose: 25 mg / x mL = 12.5 mg / 5 mL
Cross-multiplying and solving for x, we get:
25 mg * 5 mL = 12.5 mg * x mL 125 mg = 12.5 mg * x mL
125 mg / 12.5 mg = x mL 10 mL = x mL
Therefore, the nurse should administer 10 mL of diphenhydramine elixir per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Administering the granules mixed with 20 oz of water is not necessary. Montelukast granules can be administered directly into the mouth or mixed with a small amount of soft food (e.g., applesauce) if necessary. The specific instructions for administration should be provided by the healthcare provider or included in the product labeling.
B.If you’re using it to prevent breathing problems related to exercise, take a single dose at least 2 hours before exercising. However, another dose cannot be taken within 24 hours.
C.Montelukast is a leukotriene receptor antagonist commonly used for the maintenance treatment of asthma in children and adults. The usual recommended dose is once daily in the evening, depending on the specific instructions from the healthcare provider.
D. Administering the medication at the onset of wheezing is not the recommended approach. Montelukast is a daily maintenance medication for asthma and should be taken regularly as prescribed, regardless of wheezing symptoms. It is not intended to be used for immediate relief of wheezing or acute asthma symptoms. Short-acting bronchodilators are typically used for quick relief of wheezing or acute asthma symptoms.
Correct Answer is A
Explanation
Nasal glucocorticoids, also known as intranasal corticosteroids, are considered the most effective and recommended first-line treatment for nasal congestion caused by allergic rhinitis or non-allergic rhinitis. They work by reducing inflammation in the nasal passages, relieving congestion, and improving other symptoms such as itching, sneezing, and runny nose.
Leukotriene modifiers, decongestants, and antihistamines can also be used to manage nasal congestion, but they are generally considered second-line options or adjunct therapies.
Decongestants provide temporary relief by constricting blood vessels in the nasal passages, while antihistamines help with symptoms related to allergies. Leukotriene modifiers are primarily used for managing asthma and are not typically the first choice for nasal congestion alone.

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