IV Calculations (Drop rates) NCLEX questions and answers

The physician orders 1000 mL lactated Ringer's to infuse at 125 mL/h for a postoperative patient. Tubing drop factor is 10 gtt/mL. Calculate the flow rate in drops per minute. Correct answer- 21 gtt/min CALCULATION: 125mL*10 gtt per mL/60 min Zyvox 600 mg IV once a day is ordered for a patient. The Zyvox is dissolved in 350 mL of NS and should infuse over 1 hour. Using tubing with a drop factor of 20 gtt/mL, how many drops per minute should the Zyvox be infused Correct answer- 117 gtt/min CALCULATION: 350mL*20 gtt per mL/60 min The patient has Levaquin 500 mg ordered once daily. The Levaquin is available in 150 mL of NS and should infuse over 1 hour. Using tubing with a 15 gtt/mL drip factor, how many drops per minute should the Levaquin be infused? Correct answer- 38 gtt/min CALCULATION: 150mL*15 gtt per mL/60 min The physician orders Kefzol 2 g in 150 mL of NS IVPB to infuse over 45 minutes. Tubing drop factor is 10 gtt/mL. Calculate the flow rate in drops per minute. Correct answer- 33 gtt/min CALCULATION: 150mL*10 gtt per mL/45 min The physician orders vancomycin 500 mg in 100 mL of D5W IVPB daily to infuse over 2 hours. Tubing drop factor is 15 gtt/mL. Calculate the flow rate in drops per minute. Correct answer- 13 gtt/min CALCULATION: 100mL*15 gtt per min/120 min Tygacil 50 mg IV once a day is ordered for a patient. The Tygacil is dissolved in 150 mL of NS and should infuse over 30 minutes. Using tubing with a drop factor of 20 gtt/mL, how many drops per minute should the Tygacil be infused? Correct answer- 100 gtt/min CALCULATION: 150mL*20 gtt per mL/30 min The physician orders 500 mL of NS to infuse at 175 mL/h for a patient with vomiting. Tubing drop factor is 20 gtt/mL. Calculate the flow rate in drops per minute. Correct answer- 58 gtt/min CALCULATION: 175mL*20 gtt per min/60 min The physician gives orders to infuse 1 unit (250 mL) of packed red blood cells over 2 hours. Using tubing with a 15 gtt/mL drip factor, how many drops per minute should the IV fluids be infused? Correct answer- 31 gtt/min CALCULATION: 250mL*15 gtt per mL/120 min Azithromycin 500 mg IV once a day is ordered for a patient. The azithromycin is dissolved in 250 mL of NS and should infuse over 60 minutes. Using tubing with a drop factor of 15 gtt/mL, how many drops per minute should the azithromycin be infused? Correct answer- 63 gtt/min CALCULATION: 250mL*15 gtt per mL/60 min The physician orders Doribax 250 mg twice a day. The Doribax is dissolved in 150 mL of NS and is to be infused over 1 hours and 30 minutes. Using tubing with a drop factor of 10 gtt/mL, how many drops per minute should be infused? Correct answer- 17 gtt/min CALCULATION: 150mL*10 gtt per mL/90 min The physician orders fluconazole 200 mg twice a day. The fluconazole is dissolved in 250 mL of NS and is to be infused over 2 hour. Using tubing with a drop factor of 10 gtt/mL, how many drops per minute should be infused Correct answer- 21 gtt/min CALCULATION: 250mL*10 gtt per mL/120 min The physician gives orders to infuse 1000 mL 0.9% NS at 200 mL/h for dehydration. Tubing drop factor is 15 gtt/mL. Calculate the flow rate in drops per minute. Correct answer- 50 gtt/min CALCULATION: 200mL*15gtt per mL/60 min The patient has vancomycin 750 mg ordered IV once daily for an infection. The vancomycin is available in 250 mL of NS and should infuse over 1 hour. Using tubing with a 15 gtt/mL drip factor, how many drops per minute should the vancomycin be infused? Correct answer- 63 gtt/min CALCULATION: 250mL*15 gtt per mL/60 min The patient has vancomycin 750 mg ordered once daily. The vancomycin is available in 250 mL of NS and should infuse over 75 minutes. Using tubing with a 10 gtt/mL drip factor, how many drops per minute should the vancomycin be infused? Correct answer- 33 gtt/min CALCULATION: 250 mL*10 gtt per mL/75 min The physician orders fluconazole 200 mg twice a day. The fluconazole is dissolved in 750 mL of NS and is to be infused over 3 hours. Using tubing with a drop factor of 15 gtt/mL, how many drops per minute should be infused? Correct answer- 63 gtt/min CALCULATION: 750mL*15 gtt per mL/180 min Zosyn 4.5 g IV once a day is ordered for a patient. The Zosyn is dissolved in 150 mL of NS and should infuse over 1 hour. Using tubing with a drop factor of 20 gtt/mL, how many drops per minute should the Zosyn be infused? Correct answer- 50 gtt/min CALCULATION: 150mL*20 gtt per mL/60 min The patient has vancomycin 1250 mg ordered once daily for an infection. The vancomycin is available in 500 mL of NS and should infuse over 2 hours. Using tubing with a 10 gtt/mL drip factor, how many drops per minute should the vancomycin be infused? Correct answer- 42 gtt/min CALCULATION: 500mL*10 gtt per mL/120 min D5W 750 mL is to infuse over 6 hours. Using tubing with a 10 gtt/mL drip factor, how many drops per minute should the IV fluids be infused? Correct answer- 21 gtt/min CALCULATION: 750mL*10 gtt per mL/360 min The patient has Levaquin 500 mg ordered once daily. The Levaquin is available in 250 mL of NS and should infuse over 1 hour. Using tubing with a 60 gtt/mL drip factor, how many drops per minute should the Levaquin be infused? Correct answer- 250 gtt/min CALCULATION: 250mL*60 gtt per mL/60 min D5W 1000 mL is to infuse over 10 hours. Using tubing with a 60 gtt/mL drip factor, how many drops per minute should the IV fluids be infused? Correct answer- 100 gtt/min CALCULATION: 1000mL*60 gtt per mL/600 min