Moderate
A suitable fixative for a routine biopsy specimen is_____________?
Correct answer: A. 10% formalin
- A. 10% formalin
- B. 40% formalin
- C. 20% formalin
- D. 10% alcohol
Explanation
About 10% neutral buffered formalin is the standard routine fixative for biopsy specimens because it preserves tissue structure by cross-linking proteins. Higher formalin concentrations can cause excessive hardening and artefact.
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