Question

Aminosyn is an amino acid often times used in tpn orders to provide protein for cellular repair and growth. a physician writes an order for aminosyn 2.5% 500 ml. you look on the shelf and have only aminosyn 8.5% 500 ml. how are you going to prepare this order using a sterile evacuated container?

Answer 1

I think theres a few methods to do it, but this is probably the most efficient.

Physician has prescribed 2.5% of 500ml
Actual amount of Aminosyn in this prescription is
500*0.025= 12.5ml of Aminosin

Therefore you need to ensure when you pour your solution of the 8.5% Aminosyn, it has 12.5 ml of Aminosyn.

To work out how much 8.5% Aminosyn you should pour, you must think of the 12.5ml as 8.5%

Therefore 1% = 12.5/8.5= 1.470588

Therefore the amount of 8.5% solution you need to pour is 100* 1.470588= 147.1ml

Then make up the rest(352.9ml) by adding distilled water. You now have 500ml of 2.5% aminosyn.

Answer 2

An amino acid consisting of electrolytes in an injection form is called aminosin. They are used in patients to give nutritional support and is a good source of nitrogen.

147.1ml of Aminosin is required to prepare 2.5% solution.

Using a sterile evacuated container 2.5% of 500 ml aminosin can be prepared as:

• The actual amount of Aminosin required according to the prescription:

$\rm 500 \times 0.025 = 12.5 ml \;of \;Aminosin$

• To prepare 2.5% from 8.5%, 12.5 ml of Aminosin should be present.

• The 8.5% of aminosin solution should be poured with respect to preparing the 12.5 ml solution.

Therefore,

$1\% = \dfrac{12.5}{8.5} \\\\= 1.470588$

The amount of 8.5% aminosin needed to be poured will be:

$100 \times 1.470588= 147.1 \rm ml$

Now to make total 500 ml volume add distilled water 352.9 ml in 147.1 ml of aminosin solution.

To learn more about aminosin follow the link:

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