A physician orders 5 mL of phenobarbital elixir for a patient with seizures caused by meningitis....

A physician orders 5 mL of phenobarbital elixir for a patient with seizures caused by meningitis. It is available as 0.03 gram per 7.5 mL. How many mg does the patient receive?

Solutions

Expert Solution

Answer

Ordered dose = 5 ml

Available dose = 0.03 gram / 7.5 ml i.e. 30 mg / 7.5 ml

We can calculate the dose as follows

30 mg = 7.5 ml

X mg = 5 ml

By cross multiplication, 30 mg x 5 ml = X mg x 7.5 ml

i.e. X = 30 x 5 / 7.5 = 20

5 ml contains 20 mg.

It can also be calculated as

30 mg = 7.5 ml

1ml = 30 / 7.5 = 4mg

Hence 5 ml contains 20 mg (4 x 5 = 20).

The patient receives 20 mg of medicine.

Nightingale answered 1 year ago

Next > < Previous

Related Solutions

The physician orders 1,000 mL of 5% dextrose in water (D5W) to be infused in 8...

The physician orders 1,000 mL of 5% dextrose in water (D5W) to be infused in 8 hours. The drop factor of the infusion set is calibrated at 20 gtt/mL. What is the flow rate in drops per minute?

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?

If a physician orders 1000 mL of a medicine through an IV and itdelivers the...

If a physician orders 1000 mL of a medicine through an IV and it delivers the medicine at 75 ml/hr and the drop factor is 15 gtt/ml (15 drops per mL). Calculate the flow rate.

A physician assistant orders 250 mL of D5NS over 5 hours. How many milliliters per hour...

A physician assistant orders 250 mL of D5NS over 5 hours. How many milliliters per hour will the patient receive?

A patient is admitted to the hospital in sickle cell crisis. The orders from the physician...

A patient is admitted to the hospital in sickle cell crisis. The orders from the physician include: IV D5W/ ½ NS at 150 cc/hr Zofran 8 mg IV q8h Morphine sulfate 5 mg IV prn Calculate how many mg/day of Hydrea will be given PO to the patient weighing 125 lb.

A patient is admitted to the hospital in sickle cell crisis. The orders from the physician...

A patient is admitted to the hospital in sickle cell crisis. The orders from the physician include: IV D5W/ ½ NS at 150 cc/hr Zofran 8 mg IV q8h Morphine sulfate 5 mg IV prn Hydrea 10 mg/kg/day PO Folic acid 0.5 mg daily PO Calculate cc/hr to set the IV pump to infuse Zofran 8 mg. Supply: Zofran 8 mg added to 50 cc D5W to infuse over 15 min.

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...

Question 1 The physician orders a medication that the patient is allergic to. The nurse fails...

Question 1 The physician orders a medication that the patient is allergic to. The nurse fails to check the patient's allergies and administers the medication causing an anaphylactic reaction. The physician alone is at fault.. False or True Question 2 When participating in a nurse licensure compact, the nurse: A) may practice using one license in any state or territory in the United States that recognizes the NCLEX as the source of licensure. B) determines residency based on the state...

The physician orders a prescription of 16 mg/kg of Azithromycin for a patient with a upper...

The physician orders a prescription of 16 mg/kg of Azithromycin for a patient with a upper respiratory tract infection to be giving in divided doses in24 hours. Patient weighs 90 kg. Calculate the dose to be given in 8 hours.

The physician orders an IV infusion of magnesium sulfate 2 g / hr for the patient...

The physician orders an IV infusion of magnesium sulfate 2 g / hr for the patient with severe eclampsia. An IV of 500 mL NS with 20 g magnesium sulfate is available. The nurse is correct to set the IV pump to ___ mL / hr for the infusion.

Subjects