Dosis de medicamentos

The primary healthcare provider (PHCP) prescribes amoxicillin 80 mg/kg/day to be given in two divided doses. The infant weighs 8.72 kg (19.18 lbs). The label of the medication reads 250 mg/mL of amoxicillin.

How many mL of amoxicillin should the nurse administer for one dose? Fill in the blank. Record your answer using 1 decimal place.

Answer explanation

First, determine the daily prescribed dosage.

80 mg x 8.72 kg = 697.6 mg

Further, this medication is ordered in two divided doses, so divide the daily dose by 2.

697.6 mg / 2 = 348.8 mg

Next, divide the prescribed dose by the amount on hand .

348.8 mg / 250 mg = 1.39 mL

Finally, complete the problem by rounding the answer to the nearest tenth.

1.39 mL = 1.4 mL

The primary healthcare provider (PHCP) prescribes 0.5 g of acetaminophen by mouth every six hours. The nurse has administered 3 doses.

How many total milligrams has the client received? Fill in the blank.

Answer explanation

To solve this multistep problem, ½ gram will need to be converted to milligrams.

1 gram = 1000 mg; half of this would be 500 mg

Next, multiply the number of doses by the number of milligrams administered.

3 doses x 500 mg = 1500 mg

The primary healthcare provider (PHCP) prescribes 0.5 grams of cefaclor by mouth, twice a day. The nurse has cefaclor 500 mg capsules on hand.

How many capsule(s) should the nurse administer per dose? Fill in the blank.

Answer explanation

To solve this multi-step problem, the formula of dose ordered / dose on hand x volume will be utilized.

First, the nurse must convert the prescription to the same units as the medication label (grams → milligrams).

0.5 grams → 500 mg

Next, take the dose ordered and divide it by the dose on hand and multiply by its volume.

500 mg / 500 mg x 1 capsule = 1 capsule

A nurse is preparing to administer gentamycin to a child. The order is for 3 mg/kg IV daily in three divided doses. The client weighs 44.1 kg (97.02 lbs).

How many milligrams should the nurse administer per dose? Fill in the blank. Round your answer to the nearest whole number.

Answer explanation

First, determine the total daily dose for this child.

3 mg x 44.1 = 132.3 mg

Next, determine the individual dose. Divide the daily dose by 3.

132.3 mg/day / 3 doses/day = 44.1 mg

Finally, round the dose to the nearest whole number.

44.1 mg = 44 mg

A client with a stroke is prescribed alteplase. The prescription is for 0.9 mg/kg. The client weighs 116.82 kg (257 lbs).

How many milligrams will the nurse administer? Fill in the blank. Round your answer to the nearest whole number.

Answer explanation

First, multiply the prescribed dosage by the client’s weight.

0.9 mg x 116.82 kg = 105.138 mg

Next, take the answer and round it to the nearest whole number.

105.138 mg = 105 mg

The maximum dosage of alteplase is 90 mg. Thus, the nurse would only deliver this prescribed amount. However, when calculating the problem, it is essential to ascertain the dose for mg/kg first.

The nurse is calculating intake for a client. The client received:

0.9% saline at 70 mL/hr for four hours

two eight-ounce cups of ice chips

one eight-ounce cup of coffee

three eight-ounce cups of water

The nurse should calculate the client's total intake as how many mL? Fill in the blank.

Answer explanation

To calculate the client's total intake, the nurse must recall that one cup is eight ounces, equating to approximately 240 mL.

The client received 0.9% saline infusion at 70 mL/hr for four hours → 280 mL total

Two cups of ice chips → 480 mL however, 480 mL would be divided by half to account for the ice melting = 240 mL total

One cup of coffee → 240 mL

Three cups of water → 720 mL

When added up, the total intake was 1480 mL

The nurse is preparing to administer penicillin V potassium to a child with pneumonia. The child weighs 18.5 kg (40.7 lbs). The prescription is for 50 mg/kg/day PO in divided doses every six hours.

How many milligrams should the child receive with each dose? Fill in the blank. Round your answer to the nearest whole number.

Answer explanation

First, determine the total daily dose for this child.

50 mg x 18.5 = 925 mg

Next, determine the individual dose. The drug is given every six hours, so the child will receive four individual doses each day. Divide the daily dose by the frequency of dosing.

925 mg/day / 4 doses/day = 231.25

Finally, round the dose to the nearest whole number.

231.25 = 231 mg per dose

The primary healthcare provider (PHCP) prescribes 30 mg of phenobarbital by mouth, once daily. The nurse has phenobarbital 10 mg tablets on hand.

How many tablet(s) per dose should the nurse administer to the client? Fill in the blank.

Answer explanation

The formula of dose ordered / dose on hand x volume will be utilized to solve this problem.

Divide the prescribed amount of medication by what is on hand.

30 mg / 10 mg = 3 tablets

The primary healthcare provider (PHCP) prescribes cefdinir 25 mg/kg/day in divided doses every six hours. The infant weighs 8 kg (17.6 lbs).

How many milligrams should the nurse administer per dose? Fill in the blank. Round your answer to a whole number.

Answer explanation

First, multiply the prescribed dosage by the client’s weight.

25 mg x 8 kg = 200 mg

Next, since the order is in divided doses, the nurse should divide the daily dose by 4 (four 6 hour periods in 24 hours).

200 mg / 4 = 50 mg

The primary healthcare provider (PHCP) prescribes a bolus of regular insulin prior to the nurse administering a continuous infusion. The prescription is for 0.1 units/kg. The client weighs 116.36 kg (255.99 lbs).

How many units of insulin should the nurse administer to the client? Fill in the blank. Round your answer to the nearest whole number.

Answer explanation

First, multiply the prescribed dosage by the client’s weight.

0.1 units x 116.36 kg = 11.6 units

Next, take the answer and round it to the nearest whole number.

11.6 units = 12 units