The nurse is caring for a client who receives a prescription for valproic acid in which the maximum safe dosage is 60 mg/kg/day.
How many mg/day is the maximum safe dosage for a client who weighs 176 pounds? (Enter numerical value only.).
4012 mg/day.
4800 mg/day.
3520 mg/day.
6171 mg/day
The Correct Answer is B
Choice A rationale:
4012 mg/day is not the correct answer. To calculate the maximum safe dosage of valproic acid, you need to convert the client's weight from pounds to kilograms. The client's weight in kilograms can be calculated by dividing the weight in pounds by 2.2. Therefore, 176 pounds divided by 2.2 equals 80 kilograms. The maximum safe dosage is 60 mg/kg/day, so 60 mg multiplied by 80 kg equals 4800 mg/day.
Choice B rationale:
Step 1: Convert the client’s weight from pounds to kilograms. We know that 1 kg is approximately equal to 2.2 pounds. So, we have:
176 pounds ÷ 2.2 = 80 kg (approximately)
Step 2: Calculate the maximum safe dosage for the client. We know that the maximum safe dosage of valproic acid is 60 mg/kg/day. So, we have:
60 mg/kg/day × 80 kg = 4800 mg/day
So, the maximum safe dosage for a client who weighs 176 pounds is 4800 mg/day.
Choice C rationale:
3520 mg/day is not the correct answer. It does not accurately calculate the maximum safe dosage based on the client's weight.
Choice D rationale:
6171 mg/day is not the correct answer. It is significantly higher than the correct calculation and would exceed the maximum safe dosage for the client's weight.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Observing body language and movement is a valuable method for assessing pain, but it may not provide a comprehensive understanding of the client's pain experience. Clients may have different ways of expressing pain, and verbal communication should also be considered.
Choice B rationale:
Identifying effective pain relief measures is relevant but does not assess the quality of the pain itself. It focuses on pain management rather than pain assessment.
Choice C rationale:
Providing a numeric pain scale is a useful tool for quantifying pain intensity, but it does not assess the quality of pain, which is essential for understanding the nature of migraine headaches.
Choice D rationale:
Asking the client to describe the pain is the most appropriate approach for assessing the quality of pain. It allows the client to express the characteristics of the pain, such as its location, intensity, duration, and any associated symptoms, which can aid in diagnosis and treatment planning.
Correct Answer is A
Explanation
Choice A rationale:
Supplemental oxygen is given to the patient to prevent hypoxia and tissue damage due to pneumonia. Pneumonia is an infection that inflames the air sacs in one or both lungs, which may fill with fluid or pus, causing cough with phlegm or pus, fever, chills, and difficulty breathing. Hypoxia occurs when the body or a region of the body is deprived of adequate oxygen supply at the tissue level. It can cause serious damage to your heart, brain, and other organs. Hence, supplemental oxygen is administered to ensure that the patient’s tissues receive adequate oxygen.
Choice B rationale:
While supplemental oxygen can indirectly help lower blood pressure by improving oxygen supply and reducing strain on the heart, it is not primarily used for this purpose. Enalapril, which the patient is already taking, is an angiotensin-converting enzyme (ACE) inhibitor that is commonly used to lower blood pressure and reduce the workload of the heart.
Choice C rationale:
Supplemental oxygen does increase the oxygen saturation and improve respiratory function. However, this is a more general rationale for providing supplemental oxygen and not specific to this patient’s condition of pneumonia.
Choice D rationale:
Supplemental oxygen does not directly dilate the bronchioles or decrease inflammation in the lungs. Medications such as bronchodilators and corticosteroids are typically used for these purposes. In this case, supplemental oxygen is being used to prevent hypoxia and tissue damage due to pneumonia.
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