Lab Techniques Flashcards Preview

Acid-Base & RNA Viruses > Lab Techniques > Flashcards

Flashcards in Lab Techniques Deck (19):
1

in a culture, make sure you have the right _____, the ______ source, and the time.

media
specimen

2

positive gram stain retais the crystal _____

violet

3

gram negative retain the second dye, ____

red

4

mycobacterium have a waxy cell wall, so gram stain don't work well. Use ___-____ stain

acid-fast

5

india ink stain is useful for

encapsulated microbes

6

tuberculosis is an _____-____ stain

acid-fast

7

skin and vaginal mucosa are common specimen sources for ____________

wet mounts and KOH preps (KOH dissolves the epithelial cells so that the target is easily identifiable)

8

if the target antibody or antigen is present in the specimen, it will produce _________

agglutination

9

what measures complement-consuming antibody in serum or CSF?

complement fixation

10

antibodies linked to enzymes are used to detect _____

antigens (ELISA)

11

a western blot detects antimicrobial _______ by their reaction with target antigens

antibodies

12

what measures an antigen or antibody in body fluids by the degree of visible precipitation of antigen-antibody complexes?

precipitation

13

_______ shoes how sensitive the culture is to antibiotic x

zone of inhibition

14

semi quantitative method to determine the minimal concentration of a drug that inhibits growth of a particular organism?

MIC. the lower the number the better

15

________ are involved in acute bacterial infections and trauma

neutrophils

16

________ is when there is a predominance of cells with _____ nuclear lobes. Liver disease, iron deficiency anemia, glucocorticoid use

"shift to the right"
4

17

eosinophils are _______% and basophils are .5 - 1%

1-4%

18

if absolute count is less than _________, pt may be immunocompromised

1000

19

________ ______ _____ is characterized by an irregular monocyte nucleus that may stretch the length of the cell

enlarged dysmorphic lymphocyte