Cryptococcus antigen Lab Test

Cryptococcus antigen
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Clinical Definition of Cryptococcus antigen

Cryptococcosis is an invasive fungal infection caused by Cryptococcus neoformans

 It is a fungus, found in the soil, which produces spores that can be inhaled. If a person’s immune system is weakened; cryptococcus can cause a life-threatening infection in the brain called cryptococcal meningitis

The organism has been isolated from several sites in nature, particularly weathered pigeon droppings. Infection is usually acquired via the pulmonary route.

When do you expect results?

24 to 36 Hours

Why Get Tested?

 

The cryptococcal test is used to diagnose any infection with the fungus in the blood.

 

 

Reason to take Cryptococcus antigen Test

The symptoms associated are:
Fatigue
Fever
Headache
Weakness
Nausea
Confusion
Blurred vision
Bone pain
Tenderness of the breastbone
Chest pain
Dry cough
Unusual sweating
Swollen glands
Pinpoint red spots or rash
Unintentional weight loss"

Preparations Needed for Cryptococcus antigen Test

"No Fasting Required.
No other special preparations required."

Sample Required?

"Specimen type:
Serum
(Blood Sample),Specimen collection procedure:
Venipuncture
(Collection of blood from a vein, usually from the arm)"

Understanding results of Cryptococcus antigen

Reference RangeInterpretation
NegativeNo infection

A Reference range is a set of values which helps the healthcare professional to interpret a medical test. It may vary with age, gender, and other factors. Reference ranges may also vary between labs, in value & units depending on instruments used and method of establishment of reference ranges.

References

  1. http://www.childrensmn.org/references/lab/microbioviral/cryptococcus-antigen.pdf