CREATININE CLEARANCE TEST

Category

Routine Chemistry

Sub Category

Organ Function Checks

Synonym/Aliases

- NA

Abbreviations

CrCl

Type

INDIVIDUAL TEST

Results

RESULTS READY WITHIN 3 WORKING DAYS

Method

SPECTROPHOTOMETRIC.

Temp

AMBIENT: 6HOURS; R (2-8℃): 7DAYS; F (-20℃): 14DAYS

Setup

DAILY

Components Parameters

-Not Applicable

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY. AGE (DATE OF BIRTH PREFERRED), HEIGHT, WEIGHT (IN KG) REQUIRED. TOTAL 24 HOUR URINE VOLUME (ML) REQUIRED.

Patient preparation

-NOT APPLICABLE

Sample type

SERUM AND 24 HOUR URINE

Container/ preservative

SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER

Sample volume

3 ML OF SERUM & 10 ML 24 HRS URINE

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; GROSS LIPEMIA;

Other Instructions

NOT APPLICABLE

Reference intervals

AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT.

Clinical Utility

TO EVALUATE THE GLOMERULAR FILTRATION RATE (GFR).

Test Limitations / Confounders

TEST HAS LARGELY BEEN REPLACED BY eGFR ESTIMATION BASED ON SERUM CREATININE OR CYSTATIN VALUES. INCOMPLETE COLLECTION OR INCORRECT TIMING DURING COLLECTION AFFECTS RESULT ACCURACY.

CREATININE

Category

Routine Chemistry

Sub Category

Organ Function Checks

Synonym/Aliases

- NA

Abbreviations

- N/A

Type

INDIVIDUAL TEST

Results

RESULTS READY WITHIN 2 TO 3 HOURS

Method

KINETIC SPECTROPHOTOMETRIC

Temp

AMBIENT: 6HOURS; R (2-8℃): 7DAYS; F (-20℃): 14DAYS.

Setup

DAILY

Components Parameters

-Not Applicable

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.

Patient preparation

-NOT APPLICABLE

Sample type

SERUM

Container/ preservative

SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER

Sample volume

AT LEAST 2 ML

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; GROSS LIPEMIA;

Other Instructions

NOT APPLICABLE

Reference intervals

AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT

Clinical Utility

USEFUL IN THE EVALUATION OF KIDNEY FUNCTION AND IN MONITORING PATIENTS UNDERGOING DIALYSIS.

Test Limitations / Confounders

ICTERUS CAN FALSELY LOWER CREATININE VALUES.

CREATINE KINASE (CK)

Category

Routine Chemistry

Sub Category

Metabolic

Synonym/Aliases

Creatine Phosphokinase, Total Ck

Abbreviations

Ck, Cpk

Type

INDIVIDUAL TEST

Results

RESULTS READY WITHIN 4 DAYS

Method

SPECTROPHOTOMETRIC

Temp

AMBIENT:6HOURS, R (2-8℃):7DAYS, F (-20℃):30DAYS

Setup

DAILY

Components Parameters

-Not Applicable

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.

Patient preparation

-NOT APPLICABLE

Sample type

SERUM

Container/ preservative

SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER

Sample volume

AT LEAST 2 ML

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; GROSS LIPEMIA; GROSS HEMOLYSIS.

Other Instructions

NOT APPLICABLE

Reference intervals

AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT

Clinical Utility

DIAGNOSE CONDITIONS ASSOCIATED WITH MUSCLE DAMAGE.

Test Limitations / Confounders

PRESENCE OF MACRO CK CAN LEAD TO SPURIOUSLY INCREASED CK LEVELS.

C-REACTIVE PROTEIN

Category

Routine Chemistry

Sub Category

Inflammation

Synonym/Aliases

- N/A

Abbreviations

CRP

Type

INDIVIDUAL TEST

Results

RESULTS READY AFTER 2 TO 3 HOURS

Method

SPECTROPHOTOMETRIC

Temp

AMBIENT: 2-3 HOURS; R (2-8℃): 7DAYS; F (-20℃): 14DAYS.

Setup

DAILY

Components Parameters

-Not Applicable

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.

Patient preparation

-NOT APPLICABLE

Sample type

SERUM

Container/ preservative

SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER

Sample volume

AT LEAST 2 ML

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; GROSS LIPEMIA; GROSS HEMOLYSIS.

Other Instructions

NOT APPLICABLE

Reference intervals

<5MG/L

Clinical Utility

A NON-SPECIFIC INDICATOR OF INFLAMMATION, INFECTION.

Test Limitations / Confounders

- N/A

COPPER, SERUM

Category

Routine Chemistry

Sub Category

Heavy Metals

Synonym/Aliases

- N/A

Abbreviations

CU; CU2+

Type

INDIVIDUAL TEST

Results

RESULTS READY WITHIN 7 WORKING DAYS

Method

INDUCTIVELY COUPLED PLASMA/MASS-SPECTROMETRY (ICP/MS)

Temp

AMBIENT: INDEFINITE; R (2-8℃): INDEFINITE; F (-20℃): INDEFINITE.

Setup

BATCHED.

Components Parameters

-Not Applicable

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.

Patient preparation

-NOT APPLICABLE

Sample type

SERUM

Container/ preservative

NO ADDITIVE (ROYAL BLUE TOP) VACUTAINER PREFERRED.

Sample volume

2 ML SERUM

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; GROSS LIPEMIA; GROSS HEMOLYSIS.

Other Instructions

ROYAL BLUE VACUTAINERS ARE ACID WASHED VIALS FOR TRACE ELEMENTS/ HEAVY METAL COLLECTION.

Reference intervals

AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT

Clinical Utility

WILSON'S DISEASE, MENKES DISEASE, PRIMARY BILIARY CIRRHOSIS, PRIMARY SCLEROSING CHOLANGITIS ETC.

Test Limitations / Confounders

LEVELS ARE INFLUENCED BY INFLAMMATION, INFECTION, COPPER SUPPLEMENTS, PREGNANCY, CONTRACEPTIVE USE, RADIOLOGICAL CONTRAST ADMINISTRATION WITHIN PRECEDING 96 HOURS.

CHOLINESTERASE, SERUM/ PLASMA

Category

Routine Chemistry

Sub Category

Results Ready In 3-5 Working Days

Synonym/Aliases

Results Ready In 3-5 Working Days

Abbreviations

AChE

Type

INDIVIDUAL TEST

Results

RESULTS READY WITHIN 3 HOURS

Method

SPECTROPHOTOMETRY

Temp

AMBIENT: 8HOURS; R (2-8℃): 7DAYS; F (-20℃): 30DAYS

Setup

DAILY

Components Parameters

Total Bilirubin, Direct (Conjugated) Bilirubin, Indirect (Unconjugated) Bilirubin

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY. MENTION CLINICAL HISTORY

Patient preparation

-NOT APPLICABLE

Sample type

SERUM, EDTA PLASMA

Container/ preservative

SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER, EDTA (PURPLE TOP) VACUTAINER

Sample volume

AT LEAST 2 ML

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; GROSS LIPEMIA; GROSS HEMOLYSIS.

Other Instructions

-N/A

Reference intervals

AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT; FOR OCCUPATIONAL EXPOSURE, ASSESS SUBSEQUENT VALUES AGAINST BASELINE VALUES.

Clinical Utility

CHOLINESTERASE IS USEFUL FOR MONITORING EXPOSURE TO ORGANOPHOSPHORUS/ ORGANOPHOSPHATE PESTICIDES/ INSECTICIDES. MONITORS PATIENTS WITH LIVER DISEASE PARTICULARLY THOSE UNDERGOING LIVER TRANSPLANTATION.

Test Limitations / Confounders

- NOT APPLICABLE

BILIRUBIN

Category

Routine Chemistry

Sub Category

Organ Function Checks

Synonym/Aliases

-N/A

Abbreviations

-N/A

Type

PROFILE/ PANEL (BUNDLED TESTS)

Results

RESULTS READY WITHIN2 TO 3 HOURS

Method

SPECTROPHOTOMETRIC DIAZO

Temp

AMBIENT: 2-3 HOURS; R (2-8℃): 3DAYS; F (-20℃): 14DAYS

Setup

DAILY

Components Parameters

Total Bilirubin, Direct (Conjugated) Bilirubin, Indirect (Unconjugated) Bilirubin

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.

Patient preparation

-NOT APPLICABLE

Sample type

SERUM

Container/ preservative

SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER

Sample volume

AT LEAST 2 ML

Rejection criteria

HEMOLYZED SAMPLE; LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; GROSS LIPEMIA; GROSS HEMOLYSIS (UNLESS PATIENT HAVE IN VIVO HEMOLYSIS).

Other Instructions

-N/A

Reference intervals

AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT

Clinical Utility

USED FOR EVALUATION OF SUSPECTED HEPATOBILIARY DISEASE OR AS PART OF A HEMOLYTIC SCREEN.

Test Limitations / Confounders

PHOTOSENSITIVE ANALYTE (PROTECT FROM DIRECT SUNLIGHT).

BETA TRACE PROTEIN, BODY FLUID.

Category

Routine Chemistry

Sub Category

Fluid Analysis.

Synonym/Aliases

B-trace Protein; Prostaglandin D2 Synthase

Abbreviations

ßTP; BTP

Type

INDIVIDUAL TEST

Results

RESULTS READY WITHIN 5 TO 7 WORKING DAYS

Method

NEPHELOMETRY

Temp

TEMPETAURE SHOULD BE REFRIGERATED

Setup

DAILY

Components Parameters

Not Applicable

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY. CLINICAL HISTORY REQUIRED

Patient preparation

-NOT APPLICABLE

Sample type

BODY FLUID (E.G. DISCHARGE FROM THE NOSE OR EAR SUSPECTED TO BE CSF LEAKAGE).

Container/ preservative

CLEAR, LEAK PROOF CONTAINER.

Sample volume

≥1ML FLUID, NON-VISCOUS

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE (INCLUDING EDTA CONTAINER); INSUFFICIENT SAMPLE.

Other Instructions

CONCURRENT SERUM SAMPLE MAY BE REQUIRED.

Reference intervals

AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT

Clinical Utility

DIAGNOSIS OF SUSPECTED CSF LEAKS E.G. CSF OTORRHOEA, CSF RHINORRHOEA OCCURING AS A RESULT OF SKULL FRACTURES, AS A COMPLICATION OF SURGICAL PROCEDURES (E.G. SKULL BASE, SINUS, EAR SURGERY) ETC.

Test Limitations / Confounders

- N/A

BETA 2 MICROGLOBULIN, SERUM

Category

Routine Chemistry

Sub Category

Tumor Marker.

Synonym/Aliases

SS-2 Microglobulin, Beta Microglobulin 2

Abbreviations

B2M, SERUM

Type

INDIVIDUAL TEST

Results

RESULTS READY WITHIN 5 WORKING DAYS

Method

AUTOMATED IMMUNOASSAY.

Temp

AMBIENT: 1DAY; R (2-8℃): 7DAYS; F (-20℃): 21DAYS

Setup

DAILY

Components Parameters

Not Applicable

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.

Patient preparation

-NOT APPLICABLE

Sample type

SERUM

Container/ preservative

SERUM SEPARATOR TUBE (SST/ GEL) OR PLAIN (RED TOP) VACUTAINER

Sample volume

AT LEAST 2 ML

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE; GROSS LIPEMIA; GROSS HEMOLYSIS.

Other Instructions

- NOT APPLICABLE

Reference intervals

AGE & GENDER APPROPRIATE VALUES ARE PROVIDED ON THE REPORT

Clinical Utility

STAGING OF MULTIPLE MYELOMA.

Test Limitations / Confounders

- N/A

BENZODIAZEPINES

Category

Routine Chemistry

Sub Category

Drugs/ Tdm/ Toxicology

Synonym/Aliases

- N/A

Abbreviations

- N/A

Type

INDIVIDUAL TEST

Results

RESULTS READY WITHIN 3 WORKING DAYS

Method

IMMUNOCHROMATOGRAPHY

Temp

AMBIENT: 6HOURS; R (2-8℃): 7DAYS; F (-20℃): 14DAYS

Setup

DAILY

Components Parameters

-Not Applicable

PRE-ANALYTIC CONSIDERATIONS

Test Ordering Instructions

FILL OUT TEST REQUEST FORM FULLY & LEGIBLY.

Patient preparation

-NOT APPLICABLE

Sample type

URINE

Container/ preservative

CLEAN, LEAK PROOF CONTAINER

Sample volume

AT LEAST 5 ML

Rejection criteria

LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE.

Other Instructions

- NOT APPLICABLE

Reference intervals

INTERPRETIVE DATA IS PROVIDED ON THE REPORT.

Clinical Utility

DRUG OF ABUSE. BENZODIAZEPINES ARE WIDELY USED AS ANXIOLYTICS, SEDATIVE-HYPNOTICS, MUSCLE RELAXANTS AND ANTICONVULSANTS.

Test Limitations / Confounders

THIS TEST CANNOT BE USED TO GIVE THE SPECIFIC RESULT OF AN INDIVIDUAL BENZODIAZEPAM DRUG E.G. DIAZEPAM ONLY.