lab diagnosis

Question 1

Oxidase Test

Answer 1

Blue means positive

Question 2

Answer 2

Auramine-rhodamine (resist acid)

Question 3

Answer 3

Antitoxin - serological

Vertical line - antitoxin

Horizontal Line - bacterium growth

Precipitin line - antibodies from paper strip and toxin produced by bacterial growth

Question 4

Answer 4

Electron microscopy for viruses

Question 5

Catalase Test

Answer 5

Bubbles mean positive

Question 6

Answer 6

sugar fermentation

Question 7

Detection of antibodies in patient serum

Answer 7

for chronic viral infection since antigen concentration in peripheral blood is low. Use ELISA

Question 8

Answer 8

Fungi Cell Morphology (microscope)

Question 9

Detecting antigens with animal antibodies

Answer 9

Identify serotypes - E Coli O157H7,

Strep Throat – extrant antigens and mix with strips that contain antibodies from animals against sterptococcus - color change – agglutination reaction

Question 10

Answer 10

Negative stain

Question 11

Answer 11

Fungi Colony Morphology (culture)

Question 12

Parasites and their egg recognition

Answer 12

Microscopes

Question 13

CPE

Answer 13

Identify viruses by using inclusion bodies or staining. Virus kills cells that are cultured.

Question 14

Answer 14

Ziehl Neelsen stain (resists acid, for mycobacterium)

Question 15

Leprosy

Answer 15

use armadillo to see if person has it.

Question 16

PCR

Answer 16

DNA or RNA sequcnes for viruses or bacteria

Question 17

Lowenstein-Jensen

Answer 17

culture mycobacterium tuberculosis

Question 18

Urease Test

Answer 18

Pink is positive

Question 19

Answer 19

Antibiotic Susceptibitlity - disc diffusion test

Question 20

Answer 20

Biological with animals - C. Diff hard to culture

bacterial toxin

Question 21

Answer 21

MacConkey agar

Selective and differential media

red - e.coli fermenting lactose

white - nonfermenting pathogens