Lab

CASE STUDY #1 Student Name: -------

(8 pts.)

1.- (1 pt.) Clinical specimen collected from patient: ------------------------

Gram reaction, shape, and arrangement:

The clinical case states that the patient has a high white blood cell count. Which specific type of white blood cell would you expect to be the most abundant in the patient? Explain your answer.

2.- (1 pts.) The PRB test medium stands for -------------- -------- -----------

The PRB-G is the label in the actual test tube used, what does the ”G” stand for?

What is the purpose of the small upside-down tube seen inside the PRB-G test tube?

3 Chart _ 3 pts.

TESTS
Order of test	1st	2nd	3rd
Description of Result
Interpretation of Results
organisms not eliminated with the test

Answer the questions below using the results of the biochemical tests.

4.- (1 pt.) Through your testing, and observation, which enzymes, if any, are found in this organism?

Urease, catalase, cytochrome oxidase, nitratase, tryptophanase

Is the organism a sugar fermenter?

What is its likely oxygen requirement of the organism?

Based on the answers above, would you expect the organism to have catalases and/or SOD’s?

5.- (1 pt.) Using Test 2 explain the following:

Medium used, principle of the test, and reagent or indicator used.

6.- (1 pts.) Using Test 3, explain the following:

Medium used, principle of the test, and reagent or indicator used.