A nurse is preparing to administer naloxone 10 mcg/kg via IV bolus to a client who weighs 220 lb. The amount available is 0.4 mg/mL. How many mL should the nurse administer? (round off to the nearest tenth)
2.5 mL.
25 mL.
2.05 mL.
2.25 mL.
The Correct Answer is A
Let’s break down the problem step by step:
Step 1: Convert the client’s weight from pounds (lb) to kilograms (kg). We know that 1 kg = 2.2 lbs. So, we have: 220 lb ÷ 2.2 = 100 kg
Step 2: Calculate the total amount of naloxone needed. The doctor ordered 10 mcg/kg, and the client weighs 100 kg. So, we have: 10 mcg/kg × 100 kg = 1000 mcg
Step 3: Convert micrograms (mcg) to milligrams (mg). We know that 1 mg = 1000 mcg. So, we have: 1000 mcg ÷ 1000 = 1 mg
Step 4: Calculate the volume of naloxone solution needed. The available naloxone solution is 0.4 mg/mL. So, we have: 1 mg ÷ 0.4 = 2.5 mL
So, the nurse should administer 2.5 mL of naloxone. Since we are asked to round off to the nearest tenth, the final answer remains 2.5 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is A. Back pain.
Choice A reason: Back pain during a blood transfusion is a classic symptom of a hemolytic transfusion reaction. This type of reaction occurs when the immune system attacks the transfused red blood cells, leading to their destruction. Back pain is considered a more specific and early sign of this reaction.
Choice B reason: Bradycardia, which is a slower than normal heart rate, is not typically associated with hemolytic transfusion reactions. The normal range for an adult’s resting heart rate is between 60 to 100 beats per minute. Bradycardia is usually considered when the heart rate is lower than 60 beats per minute in a resting adult. It can be a sign of a well-trained athlete or can occur as a result of certain medications or heart conditions, but it is not a recognized symptom of a hemolytic transfusion reaction.
Choice C reason: Hypertension, or high blood pressure, is also not a common symptom of a hemolytic transfusion reaction. Normal blood pressure ranges from 90/60 mmHg to 120/80 mmHg. Hypertension is typically defined as having a blood pressure higher than 130/80 mmHg. While hypertension can be a serious condition, it is not indicative of a hemolytic transfusion reaction.
Choice D reason: Chills are a symptom that can be associated with a hemolytic transfusion reaction, often occurring alongside fever and back pain. However, while chills can indicate a reaction, back pain is a more specific symptom that can help differentiate a hemolytic reaction from other types of transfusion reactions.
Correct Answer is C
Explanation
Metformin should be withheld for a minimum of 48 hours after the procedure.
This is because metformin can increase the risk of contrast-induced acute kidney injury (CI-AKI) when undergoing contrast imaging.
Choice A, Clopidogrel, is not an answer because it is not mentioned in the search results as a medication that needs to be withheld after a CT scan with contrast media.
Choice B, Furosemide, is not an answer because it is not mentioned in the search results as a medication that needs to be withheld after a CT scan with contrast media.
Choice D, Carvedilol, is not an answer because it is not mentioned in the search results as a medication that needs to be withheld after a CT scan with contrast media.
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