A client who weighs 110 lbs has received a prescription for dalteparin, 150 units/kg to be administered subcutaneously daily for 4 months. The medication is available in a 7,500 units/0.3 mL prefilled syringe. How many mL should the nurse administer? (Please enter the numerical value only.)

Answer and Explanation

The Correct Answer is ["0.3"]

Step 1: Convert the client's weight from lbs to kg using the conversion factor you provided (1 kg = 2.2 lbs).

So, 110 lbs × (1 kg ÷ 2.2 lbs) = 50 kg

Step 2: Calculate the daily dosage of dalteparin in units using the prescription (150 units/kg).

So, 50 kg × 150 units/kg = 7500 units

Step 3: Determine how many mL of the medication this dosage corresponds to using the information on the syringe (7500 units/0.3 mL).

So, 7500 units × (0.3 mL ÷ 7500 units) = 0.3 mL

The nurse should administer 0.3 mL of dalteparin to the client.

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Correct Answer is A

Explanation

Choice A reason: Before administering IV fluids containing potassium chloride, it is crucial to ensure that the client has adequate urinary output, typically between 30 to 60 mL/hr. This indicates good kidney function, which is necessary for the excretion of potassium to prevent hyperkalemia, a potentially life-threatening condition.

Choice B reason: While magnesium levels can affect potassium levels, they are not the most critical assessment before potassium infusion. However, it is important to monitor magnesium levels as part of the overall electrolyte balance, especially in diabetic ketoacidosis.

Choice C reason: The size of the IV catheter is important for administration purposes, but it is not the most critical assessment data before starting potassium infusion. The catheter size affects the flow rate and comfort during infusion but does not impact the decision to start the infusion.

Choice D reason: Serum glucose level is a vital parameter to monitor in diabetic ketoacidosis, but it is not the most critical assessment before starting potassium infusion. The primary concern with potassium infusion is kidney function, as assessed by urinary output.

A. Encourage the client to obtain a complete physical exam, as these symptoms are consistent with an ulcer. B. Advise the client to seek immediate medical evaluation and treatment for these symptoms. C. Instruct the client that these mild symptoms can generally be controlled with changes in the diet. D. Assure the client that the symptoms may only reflect reflux, since ulcer pain is not relieved by food.

Correct Answer is A

Explanation

Choice A reason: Symptoms of heartburn and pain relieved by eating can indeed be consistent with an ulcer, and a complete physical exam can help diagnose the condition and rule out other causes.

Choice B reason: While immediate medical evaluation is important, it is not specified that the symptoms are severe or life-threatening, so it may not be the best initial advice.

Choice C reason: Diet changes can help manage symptoms of heartburn and indigestion, but they may not be sufficient if an ulcer is present.

Choice D reason: It is incorrect to assure the client that the symptoms are only reflux, as ulcer pain can indeed be relieved by food, contrary to the statement.

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A client who weighs 110 lbs has received a prescription for dalteparin, 150 units/kg to be administered subcutaneously daily for 4 months. The medication is available in a 7,500 units/0.3 mL prefilled syringe. How many mL should the nurse administer? (Please enter the numerical value only.)

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Naxlex Comprehensive Predictor Exams

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Explanation

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Explanation

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