Heparin has been infusing at 15 units/kg/hr using 25,000 units heparin in 250 mL D5W. The patient weighs 75 kg. Adjust the infusion rate based on the new aPTT result of 43 seconds. Include the rate in mL/hr after adjustment.
APTT less than 35 sec: Rebolus with 80 units/kg and increase rate by 4 units/kg/hr.
APTT 35-45 sec: Rebolus with 40 units/kg and increase rate by 2 units/kg/hr.
APTT 46-70 sec: No change.
APTT 71-90 sec: Decrease rate by 2 units/kg/hr.
APTT greater than 90 sec: Stop heparin infusion for 1 hour and decrease rate by 3 units/kg/hr.
Do not provide the unit of measure. Only provide the number. Round to one decimal place (tenths).
The Correct Answer is ["12.8"]
Step 1: Patient weight = 75 kg
Step 2: Current order = 15 units/kg/hr
→ 15 × 75 = 1125 units/hr
Step 3: Adjustment based on aPTT = 43 sec (range 35–45 sec)
→ Rebolus with 40 units/kg and increase rate by 2 units/kg/hr
Step 4: New rate in units/kg/hr
15 + 2 = 17 units/kg/hr
Step 5: Convert to total units/hr
17 × 75 = 1275 units/hr
Step 6: Concentration of solution
25,000 units ÷ 250 mL = 100 units/mL
Step 7: Convert to mL/hr
1275 ÷ 100 = 12.75 ≈ 12.8
Final Answer: 12.8
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["17.7"]
Explanation
First, convert the child’s weight from pounds to kilograms:
65 ÷ 2.2 = 29.5 kg
Next, calculate the dose:
15 mg × 29.5 = 442.5 mg per dose
Now, use the concentration (125 mg/5 mL → 25 mg/mL):
442.5 ÷ 25 = 17.7
Answer: 17.7
Correct Answer is ["100"]
Explanation
Step 1: Total volume = 1500
Step 2: Total time = 15
Step 3: Rate = 1500 ÷ 15 = 100
Final Answer: 100
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.
