the iv dose of mannitol is 1.5g/kg, administered as 15% solution. how many mls of the solution should be administered to a 150 pound patient.

150lb/2.2lbs/kg= ...

1.5g*150/2.2

finally
mls= 150/2.2 * 1.5 /.15

check that
I get over 680 ml

680

A child is prescribed 5gm of mannitol.you have a 20% (w/v) solution.calculate the ml needed

To find out how many milliliters (ml) of the 15% solution should be administered to a 150-pound patient, we need to convert the weight of the patient from pounds to kilograms.

First, let's convert the weight:

1 pound = 0.45359237 kilograms (kg)

So, 150 pounds = 150 * 0.45359237 kg = 68.0388555 kg (rounded to the nearest decimal place).

Now, let's calculate the dose of mannitol for the patient:

Dose = 1.5g/kg * 68.0388555 kg

Dose = 102.05828325 g

Next, we need to calculate the volume of the 15% mannitol solution needed, which is given that the solution is 15%.

15% solution means that for every 100 ml of solution, there are 15 grams of mannitol.

Let's set up a proportion to find the volume of solution needed:

15 g / 100 ml = 102.05828325 g / x ml

Cross-multiplying, we get:

15x = 102.05828325 * 100

Now, solve for x (volume):

x = (102.05828325 * 100) / 15

x = 680.3885525 ml (rounded to the nearest decimal place)

Therefore, approximately 680.39 ml of the 15% mannitol solution should be administered to a 150-pound patient.