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
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Correct Answer is B
Explanation
Choice A reason: Waiting until after the procedure to assess for discomfort does not ensure client safety during the procedure itself. While pain assessment is important, it is not the priority safety intervention in this situation, especially since the client is already mildly confused and could disrupt the sterile field or injure themselves if not properly guided.
Choice B reason: Because the client is mildly confused, there is a risk of them inadvertently reaching into or touching the sterile field during the procedure. The nurse’s priority safety action is to provide clear, simple instructions such as reminding the client to keep their hands away or under the sterile field. This prevents contamination and reduces the risk of infection, protecting both the client and the procedure.
Choice C reason: Pouring cleansing solution onto the sterile cloth field would contaminate the sterile setup, since fluids should only be poured into sterile containers or basins. This action could compromise the sterile field and increase infection risk, making it unsafe practice.
Choice D reason: Informed consent for a procedure like wound debridement must be obtained by the healthcare provider before the procedure begins, not during. While the nurse can verify consent earlier, at the point described in the scenario (when the sterile field is already set up), the immediate priority is to maintain sterility and safety, not obtain consent.
Correct Answer is C
Explanation
Choice A reason: Cooling the bottle is not necessary and shaking it is only required if the instructions specify to do so to mix the medication.
Choice B reason: Inserting the tip of the dropper into the ear canal is not recommended as it can introduce bacteria and cause injury.
Choice C reason: Pulling the pinna up and back in adults helps to straighten the ear canal, allowing for proper delivery of the medication.
Choice D reason: Administering the drops with the head held upright is not the correct method; the head should be tilted to allow the drops to flow down into the ear canal.
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