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Level two – Semester 4 - PharmD Biochemistry-II PB-403 (Practical course) 2024/2025
Which color-coded tube contains EDTA as an additive?
o Red-Top Tube
o Blue-Top Tube
o Green-Top Tube
o Lavender-Top Tube
• Answer: D. Lavender-Top Tube
What is the preferred urine specimen type for culture and sensitivity
testing?
o Random specimen
o Midstream clean-catch specimen
o First-morning specimen
o 24-hour urine collection
• Answer: B. Midstream clean-catch specimen
Which chemical preservative is recommended for preserving 24-hour
urine samples for adrenaline and steroids?
o Toluene
o HCl
o Formalin
o Thymol
• Answer: B. HCl
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