CLINICAL CHEMISTRY SERVICES

CLINICAL CHEMISTRY

ITEM / TEST / ASSAY
TEST METHODOLOGY
RUNNING DAY
TURN AROUND TIME
SPECIMEN REQUIREMENT
PATIENT PREPARATION
SPECIAL CONSIDERATIONS

Alkaline Phosphate (ALP or ALKPO4) 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 

None 

Avoid hemolysis / icteric sample; refrigerate serum or plasma 

Ammonia 

Colorimetric 
Daily 

Four hours 

 3 cc heparinized plasma (Lithium or Sodium heparin), transport with ice until analysis 

None 

Green top tube placed immediately on ice with water; centrifuge within 15 minutes without removing stopper; separate plasma and freeze; avoid hemolysis 

Amylase 

Enzymatic Method 

Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 

None 

Avoid hemolysis and lipemia 

Aspartate Amino Transferase (AST) Serum Glutamic Pyruvic Transaminase (SGOT) 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 
None 

Avoid hemolysis 

Bilirubin, Conjugated/ Direct-Neonata 

End-point Colorimetric 

Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 
None 

Avoid hemolysis / light sensitive / wrap in foil or use amber colored microtainer for neonatal bilirubin / serum should be separated from clot within 30 minutes; refrigerate serum 

Bilirubin; Total (Adult) 

End-point Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 
None 
Avoid hemolysis / light sensitive / wrap in foil or use amber colored microtainer for neonatal bilirubin / serum should be separated from clot within 30 minutes; refrigerate serum 

Bilirubin; Unconjugated / Indirect 

End-point Colorimetric 

Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 
None 

Avoid hemolysis / light sensitive/ wrap in foil or use amber colored microtainer for neonatal bilirubin / serum should be separated from clot within 30 minutes; refrigerate serum 

Bilirubin - Neonatal - Fractionated 

End-point Colorimetric 
Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 
None 
Avoid hemolysis / light sensitive/ wrap in foil or use amber colored microtainer for neonatal bilirubin / serum should be separated from clot within 30 minutes; refrigerate serum 

Blood Osmolality (BUN, Glucose, Na)

See Individual Test 

Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 
None 

Avoid hemolysis 

BNP 

Fluorescence Immunoassay 

Daily 

Routine: Two hours

STAT: One hour

3cc whole blood (EDTA tube) 

None 

To be run in STATlab 

Body Fluid Chemistry / Quantitative (Glucose, Protein, LDH) (except CSF) 

See Individual Test 

Daily 

Routine: Two hours

STAT: One hour

Body fluids except CSF 

None 

Process immediately 

Calcium 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour

3cc serum (red top or serum- separating tube) 

None 

None 

Carbamazepine or Tegretol Assay 

Turbidimetry 

Daily 

Four hours 

3 cc serum (glass red top) 

Note last dose, dosage, date, and time of collection 

Avoid hemolysis/ icteric plasma 

Cardiac Function 1: (Trop, CK, CKMB) 

See Individual Test 

Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 

None 

Avoid hemolysis 

Cardiac Function 2: (CK, CK-MB, Trop, BUN, Creatinine, TP, ALB, Glu, Ca, Po4) 

See Individual Test 
Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 

8 to 10 hours fasting; normal water intake is acceptable 

Avoid hemolysis 

Chemistry Panel 12:
(Glu, BUN, Crea, Chol, Uric, Na, Trig, AST, ALT, Co2, K, Cl) 

See Individual Test 
Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 

10 to 12 hours fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis 

Chemistry Panel 17:
(Na K, Cl, Co2, TP, ALB, Ca, Chol, Uric, Crea, BUN, Glu, TBIL, ALP, LDH, AST, Amy) 

See Individual Test 
Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 
10 to 12 hours fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 
Avoid hemolysis 

Chemistry Panel 23:
(FBS, BUN, Crea, Uric, Lipid, ASt, ALT, TBIL, DBIL, LBIL, Tpag, A/G, ALP, Na, K, Cl, Ca, P) 

See Individual Test 
Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 
10 to 12 hours fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 
Avoid hemolysis 

Chemistry Panel 23s: (Lipid, Chemistry Panel 17, GGT, AST, ALT, CK) 

See Individual Test 
Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 
10 to 12 hours fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 
Avoid hemolysis 

Chemistry Panel 6 (Na, Chol, Glu, BUN, Crea, Uric) 

See Individual Test 

Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 

10 to 12 hours fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis 

Cholesterol, Total 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 
10 to 12 hours fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 
Avoid hemolysis 

Creatinine Kinase- MB (CK-MB) 

Chemiluminescence 

Daily 

Routine: Two hours

STAT: One hour

3 cc serum (red top or SST) 
NoneAvoid hemolysis 

CK-MM (CKMB, CK) 

See Individual Test 

Daily 

Four (4) hours 

3 cc serum (red top or SST) 
None
Avoid hemolysis 

Comprehensive Metabolic Panel: (ALB, Alkpo4, AST, ALT, TBIL, Co2, Cl, Glu, K, Na, TP, BUN) 

See Individual Test 
Daily 

Routine: Two hours

STAT: One (1) hour 

3 cc serum (red top or SST) 
None
Avoid hemolysis 

C-Reactive Protein Quantitative (CRP Quanti) 

Enzymatic Method 

Daily 

Routine: Two hours

STAT: One (1) hour 

3 cc serum (red top or SST) 
None
Avoid hemolysis 

CSF Chemistry / Quantitative (Glucose, Protein) 

See Individual Test 

Daily 

Four (4) hours 

3 to 5cc of CSF 

None

Process immediately 

CSF Glucose 

Colorimetric 

Daily 
Four (4) hours 
3 to 5cc of CSF 
None
Process immediately 

CSF Protein 

Colorimetric 
Daily 
Four (4) hours 
3 to 5cc of CSF 
None
Process immediately 

Capillary Blood Glucose (CBG) 

Colorimetric 
Daily 

Routine: Two (2) hours

STAT: One (1)hour 

Capillary blood, venous, heel stick, arterial 

may either be fasting or Postprandial Glucose Test (PPBS) depending on the doctor's request 

Avoid "milking" or squeezing; wipe the first 1-2 drops of blood 

Carbon Dioxide (Co2) 

Colorimetric 
Daily 

Routine: Two (2) hours

STAT: One (1)hour 

3cc serum (red top or Serum- separating Tube) 

None 

Avoid hemolysis; tube should be completely filled by vacuum; do not open the tube until analysis 

Avoid "milking" or squeezing; wipe the first 1-2 drops of blood 

Direct ISE 

Daily 

Routine: Two (2) hours

STAT: One (1)hour 

3cc serum (red top or Serum- separating Tube) 
None 

Avoid hemolysis 

Creatinine Kinase, Total
(CK) (CPK) 

Colorimetric 

Daily 

Routine: Two (2) hours

STAT: One (1)hour 

3cc serum (red top or Serum- separating Tube) 
None 
Avoid hemolysis 

Creatinine (Crea) 

Enzymatic Method 

Daily 

Routine: Two (2) hours

STAT: One (1)hour 

3cc serum (red top or Serum- separating Tube) 
None 

Avoid hemolysis; random or 24 hr sample for urine 

Creatinine - Radiology 

Enzymatic Method 

Daily 

One (1) hour 

3 to 5 cc of CSF 

None 

Avoid hemolysis; random or 24-hour sample for urine 

Creatinine

Clearance (With Serum Crea), 24 hours 

Enzymatic Method 
Daily 

Four (4) hours 

24-hour urine collection and 3 cc serum (red top) 

None 

Follow the 24-hour urine collection procedure 

Creatinine; Other Source 

Enzymatic Method 
Daily 

Routine: Two (2) hours

STAT: One (1) hour 

body fluid other than blood 

None 

None 

Diabetes profile: (Glu, Na, K, Cl, BUN, Crea, BLD Ketone, HBA1C) 

See Individual Test 

Daily 

Routine: Two (2) hours

STAT: One (1) hour 

3cc serum (SST or red top), 3 cc whole blood (EDTA) for ketone and for hbA1c 

8 to10 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis 

Digoxin or Digitalis Assay 

Colorimetric 

Daily 

Four (4) hours 

3cc serum (glass red top) 

Note last dose, dosage, date and time of collection 

Avoid hemolysis/ icteric plasma 

Exechem Panel (FBS, BUN, Creatinine, Uric Acid, Na, K, Lipid Panel) 

See Individual Test 

Daily 

Routine: Two (2) hours

STAT: One (1) hour 

3 c serum (red top or SST) 

10 to 12 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis, separate serum within one hour 

Extended Acute Care Panel: (Na, K, Cl, Co2, BUN, Crea, Glu, Ca, Mg) 

See Individual Test
Daily 

Routine: Two (2) hours

STAT: One (1) hour 

3 c serum (red top or SST) 

8-10 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis, separate serum within one hour 

Fasting Blood Glucose (FBS) 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 

8 to 10 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis; random or 24-hour sample for urine 

Fasting Plasma Glucose (Charged as FBS) 

Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

3 cc whole blood (EDTA tube) 

8 to 10 hours of fasting, note in the posting "plasma glucose" 

Avoid hemolysis 

Gamma-Glutamyl Transferase (GGT) 

Enzymatic Method 

Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 

None 

Avoid hemolysis / icteric sample 

Glucose, Other Body Fluid 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour 

Body fluid 

None 

Avoid hemolysis / icteric sample

Glucose, Pericardial 

Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

Pericardial fluid 
None 
Avoid hemolysis / icteric sample

Glucose, Peritoneal 

Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

Peritoneal fluid 

None 

Avoid hemolysis / icteric sample

Glucose, Pleural Fluid 

Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

Pleural fluid 

None 
Avoid hemolysis / icteric sample

Glucose, Synovial 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour 

Synovial fluid 

None 

None 

HDL Cholesterol 

Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 

10 to 12 hours fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

None 

Heat Fractionated Alkaline Phosphatase 

Enzymatic Method 

Daily 

Four hours 

3 cc serum (red top or SST) 

None 

None 

Iron 

Colorimetric 

Daily 
Four hours 
3 cc serum (red top or SST) 
None 
None 

Ionized Calcium (ICa) 

Potentiometric Method 

Daily 

Routine: Two hours

STAT: One hour 

3 cc heparinized whole blood (lithium heparin-green top) 

None 

Should be processed within 10 min after collection 

Ketone / Acetone, Blood 

Enzymatic Method 

Daily 

Routine: Two hours

STAT: One hour 

3 cc whole blood (EDTA) / green top 

None 

Avoid hemolysis 

Lactate Dehydrogenase (LDH) 

Enzymatic Method 

Daily 

Routine: Two hours

STAT: One hour 

3cc serum (red top or SST) 

None 

Avoid hemolysis 

Lactic Acid (Lactate) 

Colorimetric 

Daily 

Routine: Four hours

STAT: Three hours 

3cc heparinized plasma, transport with ice until analysis 

The patient should avoid any exercise of the arm or hand before or during collection of sample. 

Blood should be collected without tourniquet; green top tube placed immediately on ice with water; centrifuge within 15 minutes; separate plasma and refrigerate if there will be delay in testing; avoid hemolysis 

Lipase 

Enzymatic Method 

Daily 

Routine: Two hours

STAT: One hour 

3cc serum (red top or SST) 

None 

Avoid hemolysis 

Lipase, Other Body Fluids 

Enzymatic Method 
Daily 

Routine: Two hours

STAT: One hour 

Body fluid other than blood 

None 

None 

Lipid panel: (Total Chol, LDL, HDL, Trig, VLDL) 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour 

3cc serum (red top or SST 

10 to 12 hours fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid lipemic sample 

Lithium 

Colorimetric 
Daily 

Four hours 

3cc serum / heparinized plasma (not from lithium heparin) 

note last dose, dosage, date and time of collection 

Avoid hemolysis 

Liver Panel: (ALT, ALP, ALB, AST, TBIL, DBIL, TP) 

See Individual Test 

Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 

None 

Avoid hemolysis 

Magnesium 

Colorimetric 

Daily 

Routine: Two hours 

STAT: One hour 

3 cc serum (red top or SST) 
None 
Avoid hemolysis 

Myoglobin 

Fluorescence Immunoassay 

Daily 

Routine: Two hours 

STAT: One hour 

3 cc whole blood (EDTA) 

None 
Avoid hemolysis 

Open Heart Surgery Panel 

See Individual Test 

Daily 

One hour 

3 cc serum (red top or SST) 

10 to 12 hours fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis 

Oral Glucose Challenge Test (OGCT), 100gms 

Colorimetric 

Daily 

Two hours from the last extraction 

3 cc serum (red top or SST) 

Non-fasting; 100 grams glucose solution will be given, and blood extraction will be done after one hour of consuming glucose load 

Avoid hemolysis 

Oral Glucose Challenge Test (OGCT), 50gms 

Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

3 cc serum (red top or SST) 

Non-fasting; 50 grams glucose solution will be given, and blood extraction will be done after one hour of consuming glucose load 

Avoid hemolysis 

Oral Glucose Challenge Test (OGCT), 75gms 

Colorimetric 

Daily 

Two (2) hours from the last Extraction 

3cc serum (red top or SST) 

Non-fasting; 75gms glucose solution will be given, and blood extraction will be done after one hour of consuming glucose load 

Avoid hemolysis 

Oral Glucose Tolerance Test (OGTT), Each Additional Sample Beyond Three 

Colorimetric 
Daily 
Two (2) hours from the last Extraction 
3cc serum (red top or SST) 

8 to 10 hours fasting for FBS blood draw;
a 75gms glucose solution will be given, another blood extraction two hours after consuming glucose load 

Avoid hemolysis 

Oral Glucose Tolerance Test, Non-pregnant, 75gms (Including FBS + Two-Hour Post) 

Colorimetric 
Daily 
Two (2) hours from the last Extraction 
3cc serum (red top or SST) 
8 to 10 hours fasting for FBS blood draw;
a 75gms glucose solution will be given, another blood extraction two hours after consuming glucose load 
Avoid hemolysis 

Oral Glucose Tolerance Test, Non-pregnant, 75gms (Including FBS + Two Draws) 

Colorimetric 
Daily 
Two (2) hours from the last Extraction 
3cc serum (red top or SST) 

8 to 10 hours of fasting for FBS blood draw; a 75gms glucose solution
will be given, succeeding blood draws after one hour and two hours of consuming glucose load 

Avoid hemolysis 

Oral Glucose Tolerance Test, Pregnant, 75gms or 100gms (Including FBS + Three Draws) 

Colorimetric 

Daily 

Two hours from the last extraction 

3cc serum (red top or SST) 

8 to 10 hours fasting for FBS blood extraction; a 75gms glucose solution
will be given, succeeding blood draws after one hour, two hours, and three hours of consuming glucose load 

Avoid hemolysis 

Phosphate or Inorganic Phosphorus (Po4) 

Colorimetric 
Daily 

Routine: Two (2) hours

STAT: One (1) hour 

3cc serum (red top or SST) 

None 

Avoid hemolysis 

Post Prandial Blood Glucose (PPBG) 

Colorimetric 
Daily 

Routine: Two (2) hours

STAT: One (1) hour 

3cc serum (red top or SST) 

May either be one (1) hour or two (2) hours post meal depending on the doctor's request 

Avoid hemolysis 

Potassium (K) 

Direct ISE 

Daily 

Routine: Two (2) hours

STAT: One (1) hour 

3cc serum (red top or SST) 

None 

Avoid hemolysis 

Phenytoin or Dilantin Assay 

Turbidimetry 

Daily 

Four (4) hours 

3cc serum (glass red top) 

Note last dose, dosage, date and time of collection 

Note last dose, dosage, date and time of collection 

Protein, Other Body Fluid 

Colorimetric 

Daily 

Routine: Two (2) hours

STAT: One (1) hour 

Body fluid other than blood 

None 

None 

Renal Function Panel:
(Na, K, Cl, Co2, BUN, Crea, Glu, Ca, Po4, ALB) 

See Individual Test 

Daily 

Routine: Two (2) hours

STAT: One (1) hour 

3cc serum (red top or SST) 

8 to 10 hours fasting; Normal water intake
is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis 

Random Blood Glucose, Non- fasting Sugar (RBS) 

Colorimetric 

Daily 

Routine: Two (2) hours

STAT: One (1) hour 

3cc serum (red top or SST) 

None 

Avoid hemolysis 

Sodium (Na) 

Direct ISE 

Daily 

Routine: Two (2) hours

STAT: One (1) hour 

3cc serum (red top or SST) 
None 
Avoid hemolysis 

Save Serum (Will be Discarded after Three Months) 

Serum Storage 

Daily 

None 

3cc serum (red top or SST) 
None 

None 

Total Iron Binding Capacity (TIBC) 

Turbidimetry 

Daily 

Four (4) hours 

3cc serum (red top) 

None 

Avoid hemolysis 

Triglycerides (Trig) 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour 

3cc serum (red top or SST) 

10 to 12 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid lipemic sample; None 

Total Protein 

Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

3cc serum (red top or SST) / 3cc heparinized plasma 

10 to 12 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis / icteric / Lipemic sample 

TPAG
(Total Protein, Albumin, Globulin, A/G Ratio) 

Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

3cc serum (red top or SST) 

10 to 12 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

None 

Troponin I, Quantitative 

Chemiluminescence 

Daily 

Routine: Two hours

STAT: One hour 

3cc serum (red top or SST) 
10 to 12 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 

Avoid hemolysis 

Urea, Blood Urea Nitrogen (BUN) 

Colorimetric 

Daily 

Routine: Two hours

STAT: One hour 

3cc serum (red top or SST) 
10 to 12 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 
Avoid hemolysis 

Uric Acid 

Colorimetric 
Daily 

Routine: Two hours

STAT: One hour 

3cc serum (red top or SST) 
10 to 12 hours of fasting; Normal water intake is acceptable unless otherwise instructed by the doctor 
Avoid hemolysis 

Urine Amylase, Random 

Enzymatic Method 

Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

Random urine 

None 

None 

Urine Creatinine, Random 

Enzymatic Method 
Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

Random urine 
None 
None 

Urine Amylase, Timed or 24 hours 

Enzymatic Method 
Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

24-hour urine collection 

None 

Follow the 24-hour urine collection procedure 

Urine Creatinine, Timed or 24 hours 

Enzymatic Method 
Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

24-hour urine collection 
None 
Follow the 24-hour urine collection procedure 

Urine Calcium (Random) 

Colorimetric 

Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

Random urine 

None 

None 

Urine Calcium 24 Hours 

Colorimetric 
Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

24-hour urine collection 

None 

Follow the 24-hour urine collection procedure 

Urine Magnesium, Random 

Colorimetric 

Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

Random urine 

None 

None 

Urine Phosphorus or Urine INORG. Phosphate, Random 

Colorimetric 
Daily

Routine: Four (4) hours

STAT: Three (3) hours 

Random urine 
None 
None 

Urine Protein Random 

Colorimetric 
Daily

Routine: Four (4) hours

STAT: Three (3) hours 

Random urine 
None 
None 

Urine magnesium, Timed or 24 Hours 

Colorimetric 
Daily

Routine: Four (4) hours

STAT: Three (3) hours 

24-hour urine collection 

None 

Follow the 24-hour urine collection procedure 

Urine Phosphorus or Urine Inorganic. Phosphate, Timed or 24 Hours 

Colorimetric 
Daily

Routine: Four (4) hours

STAT: Three (3) hours 

24-hour urine collection
None 
Follow the 24-hour urine collection procedure 

Urine Protein - 24 Hours 

Colorimetric 
Daily

Routine: Four (4) hours

STAT: Three (3) hours 

24-hour urine collection
None 
Follow the 24-hour urine collection procedure 

Urine Microalbumin / Creatinine Ratio 

Turbidimetry 

Daily 

Routine: Four hours

STAT: Three hours 

Random urine 

None 

None 

Urine Potassium 24 Hours 

Direct ISE 

Daily 

Routine: Four hours

STAT: Three hours 

24-hour urine collection 

None 

Follow the 24-hour urine collection procedure 

Urine Potassium Random 

Direct ISE 
Daily 

Routine: Four hours

STAT: Three hours 

Random urine 

None 
Follow the 24-hour urine collection procedure

Urine Sodium, Random 

Direct ISE 
Daily 

Routine: Two (2) hours

STAT: One (1) hour 

Random urine 
None 
Follow the 24-hour urine collection procedure

Urine Sodium, Timed or 24 hours 

Direct ISE 
Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

24-hour urine collection 

None 

Follow the 24-hour urine collection procedure 

Valproic Acid (Depakene) 

Turbidimetry 

Daily 

Four (4) hours 

3cc serum (glass red top) 

Note last dose, dosage, date and time of collection 

None 

Urine Urea, Random 

Colorimetric 

Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

Random urine 

None 

None 

Urine Uric Acid, Random 

Colorimetric 
Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

Random urine 

None 

 None 

Urine urea, Timed or 24 Hours 

Colorimetric 
Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

24-hour urine collection 
None 
Follow the 24 hours urine collection procedure

Urine Uric Acid, Timer or 24 hours 

Colorimetric 
Daily 

Routine: Four (4) hours

STAT: Three (3) hours 

24-hour urine collection 
None 
Follow the 24 hours urine collection procedure