Question

which of the following test is used to detect the presence of bacteria in the blood?
a) guaiac test
b) cdsa
c) leukocyte esterase
d) culture and sensitivity

Explanation:

• Guaiac test: Detects occult (hidden) blood in stool, not bacteria in blood.
• CDSA (Comprehensive Digestive Stool Analysis): Focuses on stool to assess digestion, gut flora, etc., not blood - borne bacteria.
• Leukocyte esterase: An indicator of white blood cells (often in urine to detect urinary tract infections), not a direct test for bacteria in blood.
• Culture and Sensitivity: A laboratory test where a sample (in this case, blood) is incubated to allow bacteria (if present) to grow. Once grown, the type of bacteria can be identified, and sensitivity to antibiotics can be determined.

Answer:

d) Culture and Sensitivity