Levothyroxine, common drug used to treat hypothyroidism, requires a daily dose o

Question

Levothyroxine, common drug used to treat hypothyroidism, requires a daily dose of 50, mu g of medicine for a certain patient. It comes in an IV fluid with a concentration of 0.0040% m/v [yes, the number is really that small]. What volume of IV solution needs to be delivered to this patient to give them their daily dose? A solution of saturated calcium hydroxide has a pH = 12.32.What is the [OH^] this solution? Briefly explain in words (and pictures if you like, but you must use words!) why the vapor pressure of a water solution decreases when a non-volatile solute is dissolved in the water. Circle and label the functional groups in the molecules below: A patient is given 187 mL of a solution containing 94.3 mEq/L of phosphate. How many moles of phosphate were given to the patient?

Explanation / Answer

Ans 22.

Let us assume the volume of IV fluid as 100ml.

So the amount of levothyroxine in it will be 0.004 grams.

Since 1 gm = 1000000 micrograms, 0.004 grams will be equal to 4000 micrograms.

Now we need to administer the dosage of 50microgram, so the volume of IV fluid =

(100 × 50) / 4000 = 1.25 ml

So 1.25 ml of IV fluid needs to be delivered to this patient to give them their daily dose.

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