Question

Drugs Used in Gastrointestinal System Disorders 169 36. A 20-lb puppy will be given a continuous IV infusion of metoclopramide over 24 hours for vomiting. The dosage is 2 mg/kg and the Reglan solution contains 5 mg/mL. How many milliliters of Reglan will you draw up to add to the IV fluids? 37. A 30-lb dog will be treated with Cerenia for vomiting associated with pancreatitis. The Cerenia solution contains 1 mg/mL. How much will you draw up? 38. A 1200-lb horse will be treated with omeprazole for gastric ulcers at 4 mg/kg once daily for 2 weeks. GastroGard oral paste is available in syringes containing 2.28 g. How many syringes will you dispense? 39. A 12-lb cat with anorexia due to chronic renal failure will be treated with cyproheptadine at a dosage of 0.35 mg/kg. Cyproheptadine tablets (4 mg/mL) will be used twice a day for 1 week. How many tablets will you dispense? 40. A 15-lb cat will be treated with prednisolone at 0.55 mg/kg once a day for inflammatory bowel disease (IBD). Prednisolone tablets (2.5 mg) will be used. How tablets many will you give each day?
what are the answers to question 36, 37, 38, 39 and 40. I would like to check if I got them right.

Answer 1

36. Given data

Weight of the puppy = 20 lbs= 9.09 kg

Concentration of the drug = 5mg / mL

Dose to be given = 2 mg / kg = 9 x 2 = 18 mg

The formula is, Desired dose / Dose in hand x Volume = Dose to be given

18 / 5 x 1 = 3.6 mL

Thus the answer is, 3.6 mL Reglan to be added to the IV fluids.

37. Given data

Weight of the dog = 30 lbs = 13.63 kg

Concentration of the solution = 1 mg / mL

Standard dosage of Cerenia for dogs = 1 mg / kg

The formula is, Desired dose / Dose in hand x Volume = Dose to be given

13.63 / 1 x 1 = 13.63 m L

Thus the answer is, 13.36 m L

38. Given data

Weight of the horse = 1200 lbs = 545.45 kg

Ordered dose of medication = 4 mg / kg once daily for 2 weeks

= 545.45 x 4 = 2181 mg (2.18 g)once daily for two week

Available medication is a syringe containing 2.28 gm

So for 14 days 14 syringes with 2.28 g of gastro gard oral paste to be provided.

Thus the answer is 14 syringes.

39. Given data

Weight of the cat = 12 lbs = 5.45 kg

Medication ordered = 0.35 mg / kg / dose

= 5.45 x 0.35 = 1.90 mg / dose

Concentration of medication = 4 mg / tablet

If the dose is give twice daily the medication to be used per day is 1.90 x 2 = 3.8 mg / day

Thus 7 tablets to be dispensed for one week as one tablet is 4 mg and required dose is 3.8 mg / day ( two divided doses)

The answer is 7 tablets.

40. Given data

Weight of the cat = 15 lbs = 6.81 kg

Medication ordered = .55 mg / kg / day

= 6.81 x 0. 55 mg

= 3.75 mg / da

Concentration of the medication = 2.5 mg / tablet

The formula is, Desired dose / Dose in hand x Volume = Dose to be given

Thus, 3.75 mg / 2.5 mg x 1 tab = 1.51 tablet

Thus the answer is, 1 and a half tablet (1.5) to be given per day.