A client receives a prescription for dalteparin 2500 units subcutaneously 2 hours before a scheduled procedure. The medication is available in a 5000 units/0.2 mL prefilled syringe. How many mL should the nurse administer? (Enter numeric value only)
The Correct Answer is ["0.1"]
To find out how many mL of dalteparin are needed for 2500 units, we need to use a proportion formula:
- (units of dalteparin)/(mL of dalteparin) = (units of dalteparin prescribed)/(mL of dalteparin needed)
- We can plug in the values that we know into the formula:
- (5000 units)/(0.2 mL) = (2500 units)/(x mL)
- We can cross-multiply and solve for x:
- 5000x = 2500 x 0.2
- x = (2500 x 0.2)/5000
- x = 0.1
- Therefore, the nurse should administer 0.1 mL of dalteparin to deliver 2500 units of the medication.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Neutropenic precautions are necessary when the WBC count is critically low, typically below the normal range. Since the client’s WBC count is now within the normal range, these precautions are no longer required.
Choice B reason: Filgrastim is designed to increase white blood cell (WBC) production in individuals with neutropenia. In this case, the client’s WBC count has increased from 2,500/mm³ (2.5 x 10⁹/L) to 5,000/mm³ (5 x 10⁹/L), reaching the lower limit of the normal reference range (5,000 to 10,000/mm³ or 5 to 10 x 10⁹/L). This indicates that the medication has achieved its desired effect, and it is appropriate to inform the client of this positive outcome.
Choice C reason:reason: Reviewing culture and sensitivity reports would be relevant if there was evidence of infection or a need to evaluate ongoing treatment for an infection. This is not indicated by the scenario provided.
Choice D reason: While assessing vital signs is generally important, there is no indication in this scenario that an acute issue requiring immediate vital sign monitoring is present.
Correct Answer is B
Explanation
Choice B reason: Vancomycin is an antibiotic that can treat serious bacterial infections that are resistant to other antibiotics. However, vancomycin can also cause nephrotoxicity, or damage to the kidneys, especially when given in high doses or for prolonged periods. Nephrotoxicity can lead to AKI, which is a sudden and severe decrease in kidney function that can cause fluid and electrolyte imbalances, acid-base disorders, uremia, and death. Therefore, the nurse should closely monitor the client who is receiving vancomycin for development of AKI by checking their serum creatinine and blood urea nitrogen (BUN) levels, urine output and specific gravity, and signs and symptoms of fluid overload or dehydration.
Choice A reason: Sucralfate is an anti-ulcer drug that forms a protective coating over the stomach lining and prevents further damage from acid or pepsin. Sucralfate does not cause nephrotoxicity or AKI and has minimal systemic absorption or side effects. Therefore, the nurse does not need to closely monitor the client who is taking sucralfate for development of AKI.
Choice C reason: Lorazepam is a benzodiazepine that can treat anxiety, insomnia, seizures, or alcohol withdrawal. Lorazepam does not cause nephrotoxicity or AKI and has low renal clearance or elimination. Therefore, the nurse does not need to closely monitor the client who is taking lorazepam for development of AKI.
Choice D reason: Digoxin is a cardiac glycoside that can treat heart failure or atrial fibrillation by increasing the force and efficiency of heart contractions and slowing down the heart rate. Digoxin does not cause nephrotoxicity
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