Forensic Serologymedium Premium
Forensic Serology: Presumptive and Confirmatory Body-Fluid Tests
Published:
Questions
30
Duration
30 min
Faculty-reviewed
0
Updated
09 Jun 2026
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Published:
Questions
30
Duration
30 min
Faculty-reviewed
0
Updated
09 Jun 2026
Score, per-question explanations and topic breakdown shown right after you submit.
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Forensic serology is the analysis of biological fluids at crime scenes, relying on a staged testing approach that moves from sensitive presumptive screens to highly specific confirmatory assays. This test covers the chemistry, sensitivity, and specificity of the major presumptive tests for blood, including the Kastle-Meyer (phenolphthalein) test, leucomalachite green, luminol, and Bluestar Forensic. It then examines the gold-standard confirmatory methods: the Takayama (hemochromogen) and Teichmann (hemin crystal) microcrystal tests. Semen identification via acid phosphatase color tests and microscopy, and saliva detection through salivary amylase, complete the scope. Questions require you to apply the presumptive-versus-confirmatory framework, interpret realistic casework scenarios, compare sensitivity and specificity profiles, and reason about false positives from common household substances and vegetable peroxidases. Suitable for practitioners and students at an intermediate level in forensic biology.
Questions are written and edited by the ForensicSpot team and cited from peer-reviewed forensic textbooks, official syllabi and primary case law. Each one is verified before publishing. Detailed explanations show after you submit, so the test stays a real test. See a mistake? Tell us.