An infant who weighs 22 pounds receives a prescription for amoxicillin 20 mg/kg/day by mouth in divided doses every 8 hours. The bottle is labeled, "Amoxicillin for Oral Suspension, USP 250 mg per 5 mL." How many mL should the nurse administer with each dose? (Enter numerical value only. If rounding is necessary, round to the nearest tenth.)
The Correct Answer is ["1.3"]
1. Convert the infant's weight from pounds to kilograms. We can use the conversion factor 1 kg
= 2.2 lb. So, 22 lb x (1 kg / 2.2 lb) = 10 kg.
2. Calculate the total daily dose of amoxicillin for the infant. We can use the formula D = d x W, where D is the total daily dose, d is the dose per kg per day, and W is the weight in kg. So, D = 20 mg x 10 kg = 200 mg.
3. Calculate the single dose of amoxicillin for the infant. We can divide the total daily dose by the number of doses per day. Since the prescription is for every 8 hours, there are 3 doses per day. So, 200 mg / 3 = 66.67 mg.
4. Calculate the volume of amoxicillin suspension for the single dose. We can use the ratio of the concentration of the suspension, which is 250 mg per 5 mL. So, 66.67 mg x (5 mL / 250 mg) =
1.33 mL.
5. Round the volume to the nearest tenth= 1.3 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","D"]
Explanation
A) Correct- The duration of submersion is a critical factor in determining the potential level of hypoxemia. Prolonged submersion leads to a higher risk of severe hypoxia and its associated complications.
B) Incorrect- While water temperature can affect the body's response to submersion, it is not directly related to the level of hypoxemia. Hypoxemia primarily results from the lack of oxygen intake during submersion.
C) Correct- Witnessing the fall into the pool is important because immediate initiation of cardiopulmonary resuscitation (CPR) can improve the chances of a positive outcome. Bystander CPR can help maintain oxygenation and circulation until professional help arrives.
D) Correct- The oxygen concentration in the surrounding air is crucial for oxygen delivery to the body's tissues. In cases of submersion, the availability of oxygen in the air the child is breathing plays a role in determining the level of hypoxemia.
E) Incorrect- The weight of the child is not a significant factor in determining the level of hypoxemia during submersion. The primary determinants are factors like submersion duration, availability of oxygen, and prompt initiation of CPR.
Correct Answer is C
Explanation
Choice A rationale: Initiating the urine collection without reporting the low serum creatinine is inappropriate. A value of 0.3 mg/dL is below the reference range and may indicate significant muscle wasting or severe malnutrition.
Choice B rationale: Evaluating the BUN level provides information about hydration and renal perfusion, but it does not address the immediate clinical significance of an abnormally low creatinine level in an older adult client.
Choice C rationale: The nurse must notify the provider because a creatinine level of 0.3 mg/dL is abnormally low. In older adults, this often reflects low muscle mass, which significantly impacts how drug dosages are calculated.
Choice D rationale: Assessing for hypokalemia is not directly indicated by a low creatinine level. While electrolyte monitoring is important in drug toxicity, it is not the priority action linked to this specific lab finding.
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