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.)
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","E"]
Explanation
Choice A reason: Monitoring the WBC count can help determine if the antibiotic is effectively treating an infection, as a decreasing count may indicate recovery.
Choice B reason: The RBC count is not typically affected by respiratory infections and is not a direct indicator of antibiotic effectiveness.
Choice C reason: Serum potassium levels are not directly related to the effectiveness of antibiotics for respiratory infections.
Choice D reason: BUN levels are more indicative of kidney function and are not used to evaluate antibiotic effectiveness for respiratory infections.
Choice E reason: A sputum culture and sensitivity test can identify the causative bacteria and determine if the antibiotic is effective.
Choice F reason: Urinalysis is not directly related to respiratory infections but can be part of a broader assessment of health.
Correct Answer is ["B","C","F","G","H"]
Explanation
Choice A reason: Preparing for a cesarean delivery is not indicated solely based on the information provided. The patient is at 36 weeks with moderate pre-eclampsia and there are no immediate signs of fetal distress or a need for emergency delivery based on the nurse’s notes.
Choice B reason: Administering calcium gluconate is appropriate if there are signs of magnesium sulfate toxicity, as it acts as an antidote. The patient’s decreased level of consciousness and absent DTRs may suggest magnesium toxicity, making this a correct intervention.
Choice C reason: Obtaining blood pressure is a standard and ongoing requirement for monitoring a pre-eclampsia patient, especially after noting a significant drop in blood pressure from 170/98 mm Hg to 118/78 mm Hg, which could indicate an overcorrection or other issues.
Choice D reason: Stopping the infusion of magnesium sulfate is not indicated at this time. While the patient’s decreased LOC and absent DTRs are concerning, magnesium sulfate is critical for preventing seizures in pre-eclampsia and should not be stopped without clear signs of overdose and physician consultation.
Choice E reason: Increasing IV fluids is not indicated and could be harmful. The patient already has pulmonary edema and increasing fluids could exacerbate this condition, especially in the context of pre-eclampsia where fluid management needs to be carefully balanced.
Choice F reason: Administering oxygen is correct as the patient’s oxygen saturation has dropped from 98% to 93%, and the goal is to maintain it above 96% as per the physician’s orders.
Choice G reason: Obtaining serum magnesium level is correct because it is necessary to monitor for signs of magnesium sulfate toxicity given the patient’s symptoms of decreased LOC and absent DTRs.
Choice H reason: Preparing to prevent respiratory or cardiac arrest is correct as the patient has signs that may suggest impending magnesium sulfate toxicity, which can lead to respiratory depression or cardiac arrest.
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