How it Works
Try Naxlex NCLEX-RN (Free-Trial)

A medication is to infuse at 0.6 mg/hr. The solution available is 50 mg/150 mL. The nurse should set the IV pump to deliver how many mL/hr? (Round to the nearest whole number & fill in the blank with the numerical value only)
Answer and Explanation

The Correct Answer is ["2"]

Desired dose rate = 0.6 mg/hr

Available concentration = 50 mg / 150 mL

  • Calculate the concentration in mg/mL:

Concentration (mg/mL) = 50 mg / 150 mL

                                       = 1/3 mg/mL

  • Calculate the flow rate in mL/hr:

Flow rate (mL/hr) = Desired dose rate (mg/hr) / Concentration (mg/mL)

     = 0.6 mg/hr / (1/3 mg/mL)

     = 0.6 × 3 mL/hr

Flow rate (mL/hr) = 1.8 mL/hr

  • Round to the nearest whole number:

= 2 mL/hr


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is ["15.16"]

Explanation

Given time = 3:16 pm

For times between 1:00 pm and 11:59 pm, add 12 to the hour to convert to military time.

Hour in traditional time = 3

Military time hour = 3 + 12 = 15

The minutes remain the same.

Minutes = 16

Military time = 15:16

Correct Answer is C

Explanation

A. "The IV heparin increases the effects of the warfarin and decreases the length of your hospital stay.": Heparin does not enhance the effect of warfarin directly. Their mechanisms of action are different, and warfarin’s effect is delayed. Heparin is used to maintain anticoagulation until warfarin becomes effective.
B. "Both heparin and warfarin work together to dissolve the clots.": Neither heparin nor warfarin dissolves existing clots; they prevent further clot formation and allow the body’s natural fibrinolytic system to break down clots. This statement misrepresents their action.
C. "Warfarin takes several days to work, so the IV heparin will be used until the warfarin reaches a therapeutic level.": Warfarin requires 3–5 days to reach therapeutic INR levels due to its action on vitamin K-dependent clotting factors. Heparin provides immediate anticoagulation, which is why it is continued until warfarin is therapeutic.
D. "I will call the provider to get a prescription for discontinuing the IV heparin today.": Discontinuing heparin too soon places the patient at risk for clot progression or embolization, as warfarin will not yet be therapeutic. The nurse should understand and educate the patient about the rationale for overlap.

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

Register