Question

Reference Interval for Sperm characteristics in semen associated with fertility are:
(A) 14% or more have normal morphology
(B) 75% or more are alive
(C) 10×10⁶ sperm per mL
(D) 50% or more with moderate to rapid linear (forward) progression
Choose the correct answer from the options given below:

• A. (A), (B) and (D) only.
• B. (A), (B) and (C) only.
• C. (A), (B), (C) and (D).
• D. (B), (C) and (D) only.

Hint:

Sperm viability, morphology, and motility are crucial parameters in determining male fertility. Reference intervals help assess reproductive health.

Answer 1

The Correct Option is A

• Normal Morphology: 14% or greater This level indicates healthy sperm morphology, essential for fertility.
• Sperm Viability: 75% or greater live cells This high viability ensures sperm functionality for fertilization.
• Progressive Motility: 50% or greater demonstrating moderate to rapid linear movement Effective forward movement is critical for egg fertilization.
• Option (C): is excluded because the standard sperm concentration threshold exceeds \(10 \times 10^6\) sperm/mL.