A child receives 2 teaspoons (tsp) of a penicillin suspension every 6 hours. The label states...

A child receives 2 teaspoons (tsp) of a penicillin suspension every 6 hours. The label states that there are 125 milligram (mg) of penicillin in 5 mL.

How many mL of suspension would he receive in a 24 hour period?

b. How many grams (g) of penicillin would he receive in 24 hours?

Solutions

Expert Solution

Answer to sub-question a

Ordered dose - 2 tsp. every 6 hours

Converting tsp. to ml, 1 tsp. = 4.9 ml rounded to 5 ml.

Therefore 2 tsp. contains 10ml.

Each dose is 10ml of penicillin.

Penicillin is administered every 6 hours, which means 4 times a day.

Therefore 10ml x 4 times = 40ml /day.

The child receives 40ml of penicillin suspension in 24 hrs.

Answer to sub-question b.

The label states that there is 125mg of penicillin in 5ml i.e., 125mg/5ml.

The ordered dose is 2tsp. every 6 hrs.

I.e. 10ml 4 times a day.

If each 5ml contains 125mg, then 10ml will contain

125mg x 10ml ÷ 5 ml = 250mg.

Each dose is 250mg of penicillin.

Since the child is taking 40 ml per day, the total gm. of penicillin is

250mg x 40ml ÷ 10ml = 1000mg

Converting mg to gm., we get 1000mg = 1gm.

The child receives 1gm of penicillin suspension in 24 hrs.

Nightingale answered 1 year ago

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