The healthcare provider prescribes and IV solution of regular insulin (Humulin-R) 100 units in 250 ml of 0.45% saline to infuse at 12 units/hour. The nurse should program the infusion pump to deliver how many ml/hour?
The Correct Answer is ["30"]
First, we need to find the concentration of insulin in the IV solution, which is the ratio of insulin units to saline volume. To do this, we use the given information that the IV solution contains 100 units in 250 ml. So, we divide 100 by 250 and get 0.4 units/ml.
Next, we need to calculate the infusion rate in ml/hour for the ordered dose of 12 units/hour. To do this, we use the ratio of insulin units to saline volume, which is 0.4 units/ml. So, we set up a proportion as follows:
0.4/1=12/x
To solve for x, we cross-multiply and get 0.4 x = 12. Then, we divide both sides by 0.4 and get x = 30. So, the infusion rate is 30 ml/hour.
Therefore, the nurse should program the infusion pump to deliver 30 ml/hour..
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is A. Flushed, peeling skin
Choice A reason: Flushed, peeling skin is a classic sign of scarlet fever, which is a condition that can arise from Streptococcal pharyngitis. Scarlet fever is characterized by a red rash that can cover most of the body and may lead to the skin peeling. This symptom is a direct reaction to the toxins produced by the Streptococcal bacteria.
Choice B reason: Red bumps across the chest could be indicative of many conditions and are not specifically characteristic of the reaction to toxins produced by Streptococcal bacteria. While a rash is common in scarlet fever, it typically starts on the face or neck and spreads to the rest of the body, rather than presenting as isolated red bumps.
Choice C reason: A white coating on the tongue, often referred to as “strawberry tongue,” is indeed associated with scarlet fever. However, it is not the clearest indication of a reaction to the toxins. The white coating usually precedes the strawberry-like appearance, where the tongue becomes red and bumpy.
Choice D reason: While a high fever is a symptom of scarlet fever, it is not specific to the reaction to toxins from Streptococcal bacteria, as many infections can cause high fevers. The term “protracted” suggests a prolonged fever, which could be seen in various conditions.
Correct Answer is C
Explanation
Choice C is correct because repositioning the infant every 2 hours can help expose different parts of the skin to the phototherapy light and increase the effectiveness of the treatment. The nurse should also check the skin for signs of irritation or burns.
Choice A is incorrect because feeding the infant every 4 hours is not specific to home phototherapy. The infant may need more frequent feedings depending on their hunger cues and weight gain.
Choice B is incorrect because performing diaper changes under the light is not necessary and may expose the infant's genitals to excessive light and heat. The nurse should advise the parents to cover the infant's eyes and genitals with protective shields during phototherapy.
Choice D is incorrect because covering the infant with a receiving blanket can reduce the exposure of the skin to the phototherapy light and decrease the effectiveness of the treatment. The nurse should advise the parents to keep the infant unclothed or only in a diaper during phototherapy.
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