How to prepare cefuroxime sodium 0.75g skin test?

The skin test of cephalosporin is A, that is, A, B, that is, B, and cefazolin cannot be used for skin test.

Concentration: 500 micrograms per milliliter.

3. Methods: The content of physiological saline added for the first time was 0.5g and 2ml..

0.75g plus 3ml.

1.0 g plus 4 ml

1.5g plus 6ml.

2.0 grams plus 8 ml

Step 2: Take 0.2ml of supernatant and add water to 1ml.

Step 3: Take 0.65438 0 ml of supernatant and add water to 65438 0 ml.

Step 4: Take 0.65438 0 ml of supernatant and add water to 65438 0 ml.