dosage calculation practice Flashcards

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  1. The order is metoprolol tartrate 50 mg by mouth, and the tablets on hand are 25 mg each. How many tablets should the nurse give?
  2. The order is levothyroxine 0.15 mg by mouth, and the tablets on hand are 75 mcg each. How many tablets should the nurse give?
  3. The order is metformin 1 g by mouth, and the tablets on hand are 500 mg each. How many tablets should the nurse give?
  4. The order is furosemide 20 mg by mouth, and the tablets on hand are 40 mg each. How many tablets should the nurse give?
  5. The order is warfarin 7.5 mg by mouth, and the tablets on hand are 2.5 mg each. How many tablets should the nurse give?
  6. An oral suspension of amoxicillin is labeled 250 mg per 5 mL. The order is 400 mg. How many mL should the nurse measure?
  7. An oral solution of potassium chloride is labeled 20 mEq per 15 mL. The order is 30 mEq. How many mL should the nurse measure?
  8. An oral solution of ondansetron is labeled 4 mg per 5 mL. The order is 6 mg. How many mL should the nurse measure?
  9. An oral solution of digoxin is labeled 50 mcg per 1 mL. The order is 37.5 mcg. How many mL should the nurse measure?
  10. An oral solution of prednisolone is labeled 15 mg per 5 mL. The order is 22 mg. How many mL should the nurse measure?
  11. A vial of ketorolac contains 30 mg per mL. The order is 15 mg IM. How many mL should the nurse draw up?
  12. A vial of heparin contains 5,000 units per mL. The order is 7,500 units subcutaneously. How many mL should the nurse draw up?
  13. A vial of morphine contains 4 mg per mL. The order is 3 mg IV push. How many mL should the nurse draw up?
  14. A vial of famotidine contains 10 mg per mL. The order is 20 mg IV push. How many mL should the nurse draw up?
  15. A vial of cyanocobalamin contains 1,000 mcg per mL. The order is 800 mcg IM. How many mL should the nurse draw up?
  16. A vial of furosemide contains 10 mg per mL. The order is 35 mg IV push. How many mL should the nurse draw up?
  17. After the diluent is added as the label directs, a vial of ceftriaxone yields 100 mg per mL. The order is 750 mg. How many mL should the nurse withdraw?
  18. After the diluent is added as the label directs, a vial of ampicillin yields 250 mg per mL. The order is 0.4 g. How many mL should the nurse withdraw?
  19. After the diluent is added as the label directs, a vial of vancomycin yields 50 mg per mL. The order is 1.25 g. How many mL should the nurse withdraw?
  20. How many mg are in 0.25 g?
  21. How many mcg are in 0.4 mg?
  22. How many mg are in 1500 mcg?
  23. How many g are in 2500 mg?
  24. How many mL are in 1.5 L?
  25. How many L are in 750 mL?
  26. How many kg are in 165 lb?
  27. How many kg are in 47 lb? Round to the tenth.
  28. How many lb are in 30 kg?
  29. How many mL are in 2 tsp?
  30. How many mL are in 1.5 Tbsp?
  31. How many mL are in 6 oz?
  32. How many mL are in 1.5 cups?
  33. A child weighing 18 kg is prescribed ibuprofen 10 mg/kg by mouth as a single dose. The suspension on hand is 100 mg per 5 mL. How many mL should the nurse give?
  34. A child weighing 33 lb is prescribed amoxicillin 25 mg/kg by mouth as a single dose. The suspension on hand is 400 mg per 5 mL. How many mL should the nurse give?
  35. A child weighing 44 lb is prescribed cephalexin 12.5 mg/kg by mouth as a single dose. The suspension on hand is 250 mg per 5 mL. How many mL should the nurse give?
  36. A child weighing 26 lb is prescribed ondansetron 0.15 mg/kg by mouth as a single dose. The solution on hand is 4 mg per 5 mL. How many mL should the nurse give?
  37. The safe dose of ibuprofen is 5 to 10 mg/kg per dose. A child who weighs 14 kg has an order for 120 mg per dose. Is the order within the safe range?
  38. The safe dose of cephalexin is 6.25 to 12.5 mg/kg per dose. A child who weighs 18 kg has an order for 250 mg per dose. Is the order within the safe range?
  39. The safe dose of ondansetron is 0.1 to 0.15 mg/kg per dose. A child who weighs 20 kg has an order for 1 mg per dose. Is the order within the safe range?
  40. 1,000 mL of normal saline is to infuse over 8 hours on an infusion pump. What rate in mL/hr should the nurse program?
  41. 500 mL of lactated Ringer's solution is to infuse over 6 hours on an infusion pump. What rate in mL/hr should the nurse program?
  42. 250 mL of vancomycin is to infuse over 90 minutes on an infusion pump. What rate in mL/hr should the nurse program?
  43. 50 mL of famotidine is to infuse over 15 minutes on an infusion pump. What rate in mL/hr should the nurse program?
  44. 1,200 mL of dextrose 5% in water is to infuse by gravity over 10 hours with tubing that has a drop factor of 10 gtt/mL. How many drops per minute should the nurse regulate?
  45. 750 mL of lactated Ringer's solution is to infuse by gravity over 6 hours with tubing that has a drop factor of 15 gtt/mL. How many drops per minute should the nurse regulate?
  46. 100 mL of ceftriaxone is to infuse by gravity over 45 minutes with tubing that has a drop factor of 20 gtt/mL. How many drops per minute should the nurse regulate?
  47. 250 mL of half-normal saline is to infuse by gravity over 5 hours with tubing that has a drop factor of 60 gtt/mL. How many drops per minute should the nurse regulate?
  48. An IV of normal saline is ordered at 125 mL/hr by gravity, and the tubing drop factor is 20 gtt/mL. How many drops per minute should the nurse count?
  49. An IV of dextrose 5% in water is ordered at 40 mL/hr by gravity, and the tubing drop factor is 60 gtt/mL. How many drops per minute should the nurse count?
  50. A bag holding 1,000 mL of normal saline is infusing at 80 mL/hr. How long will the bag take to finish?
  51. A bag holding 250 mL of lactated Ringer's solution is infusing at 60 mL/hr. How long will the bag take to finish?
  52. A bag holding 500 mL of dextrose 5% in water is infusing at 125 mL/hr. How long will the bag take to finish?
  53. A bag holding 1,000 mL of normal saline is started at 0630 and runs at 125 mL/hr. At what military time will it finish?
  54. A bag holding 500 mL of lactated Ringer's solution is started at 1915 and runs at 100 mL/hr. At what military time will it finish?
  55. A bag holding 250 mL of half-normal saline is started at 1340 and runs at 150 mL/hr. At what military time will it finish?
  56. Heparin 25,000 units in 500 mL is ordered at 1,000 units/hr. What pump rate in mL/hr should the nurse set?
  57. Regular insulin 100 units in 100 mL is ordered at 6.5 units/hr. What pump rate in mL/hr should the nurse set?
  58. Diltiazem 125 mg in 125 mL is ordered at 15 mg/hr. What pump rate in mL/hr should the nurse set?
  59. Dopamine 400 mg in 250 mL is ordered at 5 mcg/kg/min for a patient who weighs 80 kg. What pump rate in mL/hr should the nurse set?
  60. Dobutamine 250 mg in 250 mL is ordered at 2.5 mcg/kg/min for a patient who weighs 72 kg. What pump rate in mL/hr should the nurse set?
  61. Norepinephrine 4 mg in 250 mL is ordered at 8 mcg/min. What pump rate in mL/hr should the nurse set?
  62. How many grams of dextrose are in 500 mL of a 5% solution?
  63. How many grams of sodium chloride are in 250 mL of a 0.45% solution?
  64. A 1:1,000 epinephrine solution is used for an ordered dose of 0.3 mg. How many mL contain that dose?
  65. A 1:10,000 epinephrine solution is used for an ordered dose of 1 mg. How many mL contain that dose?
  66. What is 3:45 PM in military time?
  67. What is 7:05 AM in military time?
  68. What is 11:20 PM in military time?

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