Blood typing is used clinically for: Select one: a. Because it really hurts more
ID: 99755 • Letter: B
Question
Blood typing is used clinically for:
Select one:
a. Because it really hurts more than a lil tiny bit
b. Something to do on lunch
c. To determine if it was Colonel Mustard with the candlestick
d. Cross-matching donor and recipient blood prior to transfusion
2.
The ELISA plate is washed in between application of the primary and secondary antibodies to:
Select one:
a. Prevent herpes
b. Make it sparkle
c. Prevent secondary antibodies from binding excess unbound primary antibodies
d. Please my mother
3.
Which of the following tests in not in the Enterotube II?
Select one:
a. Glucose
b. Sorbitol
c. Catalase
d. Urea
e. Lactose
4.
Which of the following Enterotube II tests is not incubated?
Select one:
a. Lysine
b. Lactose
c. Indole
d. Citrate
e. Sorbitol
5.
Which of the following bacteria would not likely be identified by the Enterotube II?
Select one:
a. Enterobacter aerogenes
b. Escherichia coli
c. Enterococcus faecalis
d. Klebsiella pneumonia
e. Providencia stuartii
Explanation / Answer
1) Option D
Cross-matching donor and recipient blood prior to transfusion
Before transfusion of blood too recipient the done blood type is match with that of recipient blood type to determine what kind of antigens red blood cells have on the surface. If blood with antigens that you don’t have enters your system, your body will create antibodies against it.
2) Option C
After adding of primary antibodies the plate is washed to remove any unbound primary antibodies so that on adding of secondary it can binds to antigen antibody complex easily and can be detected by color change.
3) Option C
Catalase is an enzyme which is produced by microorganisms that live in oxygenated environments to neutralize toxic forms of oxygen metabolites H2O2. Anaerobes generally lack the catalase enzyme and enterotube II is done in aerobic conditions
4) Option C
Bacterial cultures with peptone broth are incubated for 24-48 hours before performing the test.
5) Option C
Enterococcus faecalis is Gram-positive whereas Enterotube II is used for identification for Gram-negative bacteria.