Question

11. Congratulations, you are a nurse in a neonatal intensive care unit (NICU)! In this unit many antibiotics need to be diluted before being given because of the low body weight of infants. In order to treat a newborn with bacterial sepsis (i.e., infection of the blood) you are told to prepare an antibiotic solution. You are given a bottle that contains 7.91 ml of sterile saline and a bottle that contains 12 ml of an antibiotic solution and are told to make a 1:38 dilution of the antibiotic solution using the sterile saline. How much antibiotic solution would you need to add to the bottle of sterile saline in order to producoe the correct dilution? SHOW ALL WORK WITH THE FINAL ANSWER ROUNDED UP TO 2 DECIMAL PLACES. (3 pts)

Answer 1

Answer :

* The normal saline volume is 7.91ml. If we will consider this is " a "

* The anti biotic solution is 12 ml. If we will consider this is "b".

* if it is need in 1:38 dilution means

* a : b = 1 : 38

*    = 1% : 38%

* = ( 7.91ml/100 ) × 1 : (12ml/100) ×38

* = 0.0791ml : 0.12 ml × 38

* = 0.0791ml : 4.56ml

* so finally we need to take for 0.0791 ml of normal saline 4.56 ml of antibiotic solution.