Semen Analysis · Pathology

The 'Mixed Antiglobulin Reaction' (MAR) test is used in semen analysis to detect:

  1. Sperm DNA fragmentation
  2. Antisperm antibodies
  3. White blood cell concentration
  4. Presence of prostatic acid phosphatase
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Correct answer: Antisperm antibodies

The MAR test (or Immunobead test) detects the presence of IgG or IgA antibodies bound directly to the sperm surface. High levels of these antibodies can cause immunological infertility by hindering motility or cervical mucus penetration.

Difficulty: Medium Question 11 of 20

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