Fluorometric; High Performance Liquid Chromatography (HPLC)
Edit Date:
7/22/2005
Performed:
Monday-Friday
Released:
4 days after setup at PeaceHealth Laboratories’ reference lab.
CPT Code:
84126-90
Specimen Collection Details
Collection:
24-hour stool sample in a pre-weighed screw-cap plastic container, obtained from Client Services. If 100 grams is not obtained in 24 hours, extend collection to 48-72 hours. Freeze. Patient should refrain from red meat for 3 days prior to collection and abstain from alcohol for 24 hours prior to and during collection. Compliance should be indicated. Include with the specimen a list of medications the patient is currently taking.
Handling:
Note time collection started and stopped on request form.
Stability:
14 days refrigerated, or indefinitely frozen. Unstable ambient.
Standard Volume:
At least 100 grams.
Transport:
Frozen on dry ice.
Reference ranges are reported as porphyrins excreted in ug/24 hours.
Porphyrins
Upper Limit of Normal
Range of Marginal Increase
Definite Increase
Uroporphyrin I
<=120
121-150
>150
Uroporphyrin III
<=50
51-100
>100
Heptacarboxyl Porphyrin I
<=40
41-60
>60
Heptacarboxyl Porphyrin III
<=40
41-60
>60
Isoheptacarboxyl Porphyrins
<=30
31-50
>50
Hexacarboxyl Porphyrin I
<=10
11-20
>20
Hexacarboxyl Porphyrin III
<=10
11-20
>20
Isohexacarboxyl Porphyrins
<=10
11-20
>20
Pentacarboxyl Porphyrin I
<=20
21-30
>30
Pentacarboxyl Porphyrin III
<=20
21-30
>30
Isopentacarboxyl Porphyrins
<=80
81-100
>100
Coproporphyrin I
<=500
501-600
>600
Coproporphyrin III
<=400
401-500
>500
Isocoproporphyrins
<=200
201-250
>250
Tricarboxyl Porphyrin I
<=200
201-250
>250
Tricarboxyl Porphyrin III
<=200
201-250
>250
Isotricarboxyl Porphyrins
<=150
151-200
>200
DICARBOXYL PORPHYRINS
Protoporphyrin
<=1,500
1,501-2,000
>2,000
Mesoporphyrins
<=220
221-250
>250
Semi-Proto/Mesoporphyrin
<=200
Deuteroporphyrin
<=1,200
1,201-1,400
>1,400
Semi-Proto/Deuteroporphyrin
<=1,500
Hematoporphyrin
<=90
91-110
>110
Semi-Proto/Hematoporphyrin
<=200
Other Dicarboxyl Porphyrins
<=200
Total Dicarboxyl Porphyrins Derived from Protoporphyrin
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