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Test Name
Collection Requirements
Copper –Serum
PLAIN TUBE OR GEL TUBE
Copper –Urine 24 hour
24HR URINE (NIL PRESERVATIVE)
Note starting and finishing times on urine container.
Copper–Urine Random
YELLOW TOP CONTAINER–MORNING URINE
(preferred)
Note time of collection on jar.
Cortisol
PLAIN TUBE OR GEL TUBE
Note collection time & any hormone therapy on
referral.
Cortisol –Urine 24 hour
24HR URINE (NIL PRESERVATIVE)
Note starting and finishing times on urine container.
Cortisol –Urine Random
YELLOW TOP CONTAINER–MORNING URINE
Note time of collection on jar.
Cortisol AM
PLAIN TUBE OR GEL TUBE
8-10AM collection preferred. Note collection time &
any hormone therapy on referral.
Cortisol PM–Serum
PLAIN TUBE OR GEL TUBE
Note collection time & any hormone therapy on
referral.
Cotinine–Serum
PLAIN TUBE OR GEL TUBE
Cotinine–Urine Random
YELLOW TOP CONTAINER–RANDOM URINE
Creatine Kinase (CK)
PLAIN TUBE OR GEL TUBE
Creatinine
PLAIN TUBE OR GEL TUBE
Creatinine–Urine 24 hour
24HR URINE (ANY PRESERVATIVE)
Note starting and finishing times on urine container.
Creatinine–Urine Random
YELLOW TOP CONTAINER–MORNING URINE
Note time of collection on jar.
Creatinine Clearance–Urine 24 hour
24HR URINE (NIL OR ANY PRESERVATIVE) &
PLAIN TUBE OR GEL TUBE
Note starting and finishing times on urine container.
Crossmatch (Group & Hold)
Refer patient to collection centre
Cryofibrinogen
CITRATE TUBE
Citrate tube must be filled to the line at the top of
the label (fill line) and mixed thoroughly.