Question

Morphine is injected intravenously into a patient’s blood stream in a solution

of 2 mg/mL at a rate of 1 mL/hour. The patient is bleeding at a constant rate of 3

mL/hour. The patient normally has 5 L blood in their body, and will lose consciousness

if they lose more than 40% of their total blood volume. What is the concentration of

morphine in their blood (mg/L) by the time they lose consciousness, assuming they have

excellent circulation?

Answer 1

Morphine Maximum dose for patient should be 120mg/day..should not exceed more than that patient may lose consciousness.

Patient bleeds at the concentration of 3ml/hour

It is equal to 6mg/hour because 2mg/ml

If same dose continue it will be 6X 24 hours =144mg/day.

It is overdose for the patient they may lose consciousness.