A nurse is preparing to administer nitroglycerine 15 mcg/min by continuous IV infusion. Available is nitroglycerin 25 mg in 250 mL of dextrose 5% in water (D5W). The nurse should set the IV pump to deliver how many mL/hr? (Round to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.
9
19
0.9
90
The Correct Answer is A
Convert the dosage to mcg per hour:
15 mcg/min×60 min/hr=900 mcg/hr15
Convert the available nitroglycerin concentration to mcg/mL:
25 mg=25,000 mcg
The concentration is(25,000 mcg/250 mL)=100 mcg
Calculate the flow rate in mL per hour using the dosage and concentration:
Flow rate (mL/hr)=(900 mcg/hr100 mcg/mL)=9 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Given:
Ordered dose of hydrocortisone: 100 mg
Concentration of hydrocortisone: 250 mg/2 mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
100 mg / Volume = 250 mg/2 mL
Step 3: Solve for the unknown volume:
Volume = 100 mg / (250 mg/2 mL)
Volume = 100 mg x (2 mL / 250 mg)
Volume = 0.8 mL
Correct Answer is B
Explanation
The order directly states that the infusion rate is 30 mL/hr.
The information about the amount of Lidocaine (2 g) and the volume of D5W (250 mL) is irrelevant to determining the flow rate in this case.
The flow rate is already specified as 30 mL/hr in the order.
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.