The test used for the diagnosis of trichomoniasis is: (Solved MCQ)

Gsindia

2 weeks ago

The test used for the diagnosis of trichomoniasis is:

A. Wet mount of vaginal fluid

B. ELISA test of serum

C. Specific serologic test

D. Ova and parasite fecal smear

Correct Answer: A. Wet mount of vaginal fluid

Explanation

The test used for the diagnosis of trichomoniasis is:

Explanation:

Trichomoniasis is caused by Trichomonas vaginalis, a motile protozoan.
On a wet mount microscopy of vaginal discharge (saline preparation), the organism can be seen as actively motile, flagellated protozoa.
This is the most commonly used and rapid bedside diagnostic test.

Answer: ✅ Wet mount of vaginal fluid

Other Options Details

Here’s a clear, exam-oriented explanation of all the options:

A simple microscopic test done by placing vaginal discharge on a glass slide with saline.
Commonly used to diagnose:
- Bacterial vaginosis → clue cells
- Trichomoniasis → motile trichomonads
- Candidiasis → budding yeast or pseudohyphae
It’s quick, cheap, and often done in OPD settings.

A blood test that detects antigens or antibodies using enzyme-linked reactions.
Commonly used for infections like:
- HIV
- Hepatitis B & C
- Syphilis (screening)
Very sensitive and useful for screening large populations.

Detects specific antibodies against a particular organism in the blood.
Examples:
- VDRL / RPR → screening for syphilis
- TPHA / FTA-ABS → confirmatory tests for syphilis
Helps in confirming diagnosis and staging of disease.

Microscopic examination of stool samples.
Used to detect:
- Intestinal parasites like roundworms, hookworms, tapeworms
- Protozoa such as Entamoeba histolytica and Giardia
Not useful for diagnosing genital or vaginal infections.

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Writer: Vandita Singh, Lucknow (GS India Nursing Group