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 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
Correct Answer is A
Explanation
Choice A reason: This is the best option to measure the peak and trough levels of vancomycin, as it reflects the highest and lowest concentrations of the drug in the blood. The peak level indicates the efficacy and potential toxicity of vancomycin, while the trough level indicates the clearance and potential subtherapeutic effect of vancomycin. The peak level should be drawn immediately after completion of the IV dose, as it takes about 30 minutes for vancomycin to reach its maximum concentration in the blood. The trough level should be drawn 30 minutes before the next administration of the medication, as it represents the lowest concentration of vancomycin in the blood before it is replenished by another dose.
Choice B reason: This is not a good option to measure the peak and trough levels of vancomycin, as it may not capture the true highest and lowest concentrations of the drug in the blood. The peak level may be lower than expected, as it takes about 30 minutes for vancomycin to reach its maximum concentration in the blood. The trough level may be higher than expected, as it is drawn too close to the next administration of the medication.
Choice C reason: This is not a good option to measure the peak and trough levels of vancomycin, as it does not reflect the highest and lowest concentrations of the drug in the blood. The peak level is drawn too early, as vancomycin has not reached its maximum concentration in the blood yet. The trough level is drawn too late, as vancomycin has already started to decline in the blood.
Choice D reason: This is not a good option to measure the peak and trough levels of vancomycin, as it may miss the highest and lowest concentrations of the drug in the blood. The peak level is drawn too late, as vancomycin may have already started to decline in the blood. The trough level is drawn too early, as vancomycin may have not reached its minimum concentration in the blood yet.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.