Your are preparing to give potassium chloride 30 meq in 1000 ml of normal saline over 10 hours. The medication label reads 40 meq per 20 ml. how many milliliters of potassium chloride do you need to administer the correct dose ?
1. 10 ml
2. 15 ml
3. 20 ml
4. 50 ml
1. 10 ml
2. 15 ml
3. 20 ml
4. 50 ml
Correct Answer – Option 2 : 15 ml
CONCEPT:
Basic dosage calculation
\(Dose ={D\,{(Desired\,dose)} \over{H\, (Amount\, on\,hand)}}\times V\, (volume)\,\)
CALCULATION:
D (desired dose) = 30 meq
H (amount in hand/ available dose) = 40 meq
V (volume)= 20 ml
\(Dose ={30 *20\over40 }\,\)
Dose = 15
Hence, the correct answer is 15ml.