A patient has an order for 200 mg q8h of cimetidine (Tagamet) to be administered intramuscularly. The vial of 8 mL contains 300 mg per 2 mL.

A patient has an order for 200 mg q8h of cimetidine (Tagamet) to be administered intramuscularly. The vial of 8 mL contains 300 mg per 2 mL.

How many mL would you give q8h?

Expert Solution

Desired dose (D) : 200mg, 8th hourly

Dose in hand (H) : 300 mg in 2ml

Volume (V) = 8ml

Therefore, 1 vial of Cimetidine contains 8ml

8 ml has 1200 mg i.e., 2ml x 4 = 8ml

300mg x 4 = 1200mg

Find out how much ml of dose can be given to patient 8th hourly

Formula :

Dose = D / H X V

Dose = 200mg / 1200mg X 8ml

Dose = 1.3 ml

Answer is 1.3 ml (200mg) of Cimetidine should be given 8th hourly

Nightingale answered 2 years ago

A 250 mL vial contains 100 mL of water with 1500 mg of benzene per liter....

A 250 mL vial contains 100 mL of water with 1500 mg of benzene per liter. The vial is then filled with a 50/50 (by volume) toluene/benzene solution. What will be the concentration of benzene in water after equilibrium is acheived? (mg/L) Use a (mole fraction) partition coefficient, KX for benzene in this system equal to 2476.

A patient is ordered 40 mg IV once daily. the concentration of the vial is 25mg/ml....

A patient is ordered 40 mg IV once daily. the concentration of the vial is 25mg/ml. the IV manual states to dilute the medication in a 50 ml bag of NS and infuse over 30 min. The drop factor is 10gtt/ml. At what rate in drops/min would you infuse the medication?

A physician orders Gentamycin 1.5 mg/kg/q8h IVPB in 150 mL NS for a patient who weighs...

A physician orders Gentamycin 1.5 mg/kg/q8h IVPB in 150 mL NS for a patient who weighs 148 lb. The infusion is to be infused at 25 gtts/min. The drop factor is 20 gtts/mL. How many milligrams of Gentamycin should this patient receive? How long will it take for this medication to be infused in minutes? What total amount of Gentamycin will be infused daily? How many milligrams will the patient receive in 45 minutes?

1. The physician's order reads morphine 15 mg IM now. The 5 mL vial in the...

1. The physician's order reads morphine 15 mg IM now. The 5 mL vial in the medicine drawer is labeled Morphine 15 mg per mL. How much will you administer? 2. Ordered: Heparin 20,000 units IV now. You have on hand a 10 mL vial of Heparin with 10,000 units per mL. How many mL will you administer to the patient? 3. Phenergan cough syrup 25 mg po q 6 hours is ordered for your patient. You have on hand...

The physician orders 2 mg of a certain medication be administered orally to a patient. The...

The physician orders 2 mg of a certain medication be administered orally to a patient. The label indicates the strength of the medication is 1:7500. What volume (ml) of this medication will the nurse administer? The physician orders, "Cytarabine, 400 mg, IM." The label indicates, "Cytarabine, 500 mg multidose vial. Reconstitute with 4 ml Normal Saline. The safe daily dose is 20 mg/kg/day to 25 mg/kg/day in equally divided doses every 6 hours." The patient weighs 160 pounds. If the physician...

Order: Retrovir (zidovudine) 150 mg added to 150 mL of D5W to be administered by IV...

Order: Retrovir (zidovudine) 150 mg added to 150 mL of D5W to be administered by IV infusion q4h. Run over 1 hour with a 15 gtt/mL administration set. Stock available: Retrovir 10 mg/mL IV infusion solution 20-mL single-use vial (must be diluted for administration) • How many milliliters of Retrovir should be added to the IV fluids? • How many mL of fluids will be infused with each dose? • What is the drip rate for the infusion? • How...

1. How many mg of fluconazole are contained in 300 mL of a 0.4% solution? 2....

1. How many mg of fluconazole are contained in 300 mL of a 0.4% solution? 2. How many mL of a 20% magnesium sulfate solution will contain 14 grams of magnesium sulfate? 3.The label on a 30 mL aminophylline vial indicates a strength of 500 mg/20 mL. How many mL of aminophylline would contain 225 mg of the drug?

The patient has an order for valproic acid (Depakote) 10 mg/kg/day PO divided into 2 doses.

The patient has an order for valproic acid (Depakote) 10 mg/kg/day PO divided into 2 doses. The patient weighs 226 lb. How much will the nurse administer for each dose? ___ mg (If needed, round to the nearest whole number.)The patient has an order for Regular insulin 18 units/hr IV. The medication available is Regular insulin 200 units in 500 mL NS. At what rate will the nurse set the infusion? ___ mL/hr (If needed, round to the nearest whole...

Medication with strength 1 g/2 mL has been ordered at 10 mg/kg. The patient weighs 197...

Medication with strength 1 g/2 mL has been ordered at 10 mg/kg. The patient weighs 197 lb. How much should be administered? (If less than 1, round to the nearest hundredth; otherwise, round to the nearest tenth.)

Medication with strength 125 mg/mL has been ordered at 15 mg/kg. The patient weighs 274 lb....

Medication with strength 125 mg/mL has been ordered at 15 mg/kg. The patient weighs 274 lb. How much should be administered?

Question