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PATOLOGI KIMIA Head of Unit : Dr Nur Shafini Binti Che Rahim Phone : +60326155555 ext 5630 1. INTRODUCTION The Chemical Pathology Unit provides diagnostic and consultative services to Hospital Kuala Lumpur for patient management. It also serves as referral centre for all the hospitals in Malaysia. Our services cover analysis and interpretation of biochemical changes in body fluids for diagnostics, monitoring and screening of diseases. 2. SERVICES Chemical Pathology Unit offers specialized biochemical testing. The list of services includes: i. Endocrine Thyroid Function Catecholamines, Test, Extended Fertility Test, Hormone Serum and Urinary Cortisol, (Dehydroepiandrosterone sulphate (DHEAS), Insulin, C-peptide, Growth Hormone, Adrenocorticotrophic Hormone (ACTH), Intact Parathyroid Hormone (IPTH)) ii. Metabolic HbA1c, Homocysteine iii. Protein and Proteomic Serum and Urine Protein Electrophoresis, Special Protein (Alpha 1 anti-trypsin, haptoglobin, transferrin, caeruloplasmin, IgG, IgA, Ig M iv. Hematological Biochemistry v. Toxicology. Requests are made as either single test or multiple tests in a dynamic function tests. 3. SERVICE HOURS Operating hours : 7.30 am – 5.30 pm (Monday – Friday) URGENT request: Appointment should be made by contacting Pathologist,Medical Officer and Section in-charge. The request form should be signed or countersigned by requesting Specialist. 4. REQUEST FORMS Request forms for all tests are PERPAT 301 form. 5. SAMPLE COLLECTION 5.1 BLOOD Most of tests in chemical Pathology require serum sample that need to be collected in plain tube. Special requirement needed for certain tests: For HbA1c test require whole blood sample that need to be collected in EDTA tube. Request less than 2 months from previous result will be rejected. For morning serum cortisol: between 8 to 10 am; for midnight serum cortisol: between 10 to 12 pm. For fertility test: Progesterone collected at day 21 menstrual cycle, estradiol, FSH and LH is collected at day 2 to 5 of menstrual cycle. Certain tests required to be sending in ice such as ACTH. Serum and Urine Protein Electrophoresis should be send as paired sample for better interpretation of tests results 5.2 URINE 24 hours Urine Collection Most quantitative assays are performed on urine specimen collected over 24 hours. The 24 hours timing allows for circadian rhythmic changes in excretion at certain time of day. Procedure of collection: The 24 hours urine bottle which contains appropriate preservative for the required test is available at the Stor Integrasi, Jabatan Patologi. Urine bottle will be provided on request, with the accompanying request form or note. On the day of collection, the first urine voided must be thrown away. Time of first urine voided is the start of the timing for the 24 hour collection. Collect the second and subsequent voided urine for 24 hour from the timed start into the 24 hour urine bottle. For male patient, it is advisable NOT to void the urine directly into the 24 hour urine bottle. This is to avoid possible chemical burns. At the end of 24-hours, the last urine voided is collected. For best result, refrigerate if possible. Label the bottle as directed and send immediately to the laboratory. eg. of tests: 24-hours urine cortisol and 24-hours urine catecholamine 24-hours Urine Catecholamines Please refer to procedure 24 hour urine collection to collect urine for 24hr urine catecholamines. For adult minimum 500 mls of urine should be collected. For paediatric samples urine creatinine will be run for every request. Please note that, preservative 10 mls of 25% HCl is added into the bottle to preserve the analytes. It is important for the requesting physician to advise the patient NOT to discard the preservative. Instruction on patient preparation and specimen collection Abstain from bananas, coffee, pineapple and walnuts one day prior to and during the 24 hour urine collection. Certain drugs alter the metabolism of catecholamines. It is advisable to stop such medication at least 5 days prior to urine sampling i.e Alpha2 agonists, Calcium channel blockers, ACE inhibitors, Bromocriptine, Methyldopa, Monoamine oxidase inhibitors, Alpha blockers and Beta blockers, Phenothiazines and Tricylic antidepressants. Please advice patient to avoid stress, exercise, smoking and pain prior to and during urine collection. 24-hours Urine Cortisol Please refer to procedure 24 hour urine collection to collect urine for 24hr urine cortisol. 6. Minimum of 500 mls of urine should be collected. RECEIPT OF SPECIMEN Specimens will be received at the main counter (Pre-analytical Unit). 7. REPORTING OF RESULTS Results will be validated by Chemical Pathologist/Medical Officer/Scientific Officer according to the test. Test results will be ready according to promised Laboratory turnaround time (please refer to Section List of Tests). Current reference intervals will be provided for all results. These may be subject to variation differentiated by age and sex where important / available. Reports are dispatched to the respective pigeon hole or posted via mail for referral external samples. 8. ENQUIRY OF RESULTS Enquiry of results can be made to Unit Patologi Kimia by telephone (ext 5284). Enquiry for result from external customer can be made via tracing letters. 9. SERVICES AFTER OFFICE HOURS If test needed after working hours, consultation and agreement from Chemical Pathologist/ Medical Officer in charged are required. 10. PROTOCOLS FOR INVESTIGATION OF ENDOCRINE DISORDERS The protocols listed below are only as guide and are subjected to changes according to clinician requirement. These protocols are mainly for adult. 10.1 PITUITARY DISORDERS Assessment of Anterior pituitary Hormone 1. Pituitary Hormone Insufficiency Anterior pituitary hormones include Growth Hormone (GH), Prolactin, Thyroid Stimulating Hormone (TSH), Follicle Stimulating Hormone (FSH), Luteinizing Hormone (LH) and Adrenocorticotrophic Hormone (ACTH). Main abnormalities to look for are Corticotroph deficiency, Thyrotroph deficiency, Gonadotroph deficiency or Somatotroph deficiency. Assessment of Anterior Pituitary Reserve a) Initial assessment Morning serum Cortisol and ACTH or Short Synachten Test Thyroid Function Test (TSH, FT4) Prolactin, LH, FSH GH Testosterone for man b) Estradiol for woman Combine Anterior Pituitary Stimulation Test (Insulin Stress Test + Gonadotrophin Stimulation Test) Procedures: Fast the patient overnight. Insert intravenous catheter or intravenous line. Rest patient for 30 minutes. Take samples for glucose, growth hormone, cortisol, LH, FSH and TSH (as baseline investigation). Give insulin 0.1-0.15 unit/kg body weight, 200µg TRH and GnRH 100ug intravenously. Collect samples into plain tubes and Glucose tubes and label as follows: Time Tests Tube 0 min (basal) Glucose Glucose tube Cortisol, GH, LH, 1 plain tube FSH,TSH 15 min Glucose Glucose tube 20 min FSH, LH, TSH 1 plain tube 30 min Glucose Glucose tube Cortisol, GH, LH 1 plain tube 45 min Glucose ( if patient Glucose tube become clinically/biochemically (glucose < 2.2 mmol/L) hypoglycaemic 60 min Glucose Cortisol, Glucose tube GH, LH, 1 plain tube FSH,TSH 90 min 120 min Glucose, Glucose tube cortisol, GH 1 plain tube Glucose, Glucose tube cortisol, GH 1 plain tube * GH-Growth hormone, LH-Luteinizing hormone, FSH- Follicular stimulating hormone, TSH – Thyroid Stimulating Hormone Adapted from Clinical Chemistry Sixth Edition, William J Marshall & Stephen K Bangert, Mosby, 2008, pg 140. Label specimens according to sampling time. Send all samples after test is completed to main counter, Pathology Department. Notes: Plasma glucose level must fall below 2.2 mmol/L and/or clinical signs and symptoms of hypoglycaemia (sweating, tachycardia etc) must be observed. Additional intravenous insulin may be given if this does not occur by 30 min and sampling should be prolonged by another 30 min. Physician should be in attendance throughout the tests and 50% i.v. dextrose should be kept by bed side if severe hypoglycemia is documented. Giving glucose for severe hypoglycemia does not invalidate the test results. Test is contraindicated for patient with seizure, IHD or cardiovascular insufficiency and in young children. c) Normal ECG is mandatory. Insulin Stress Test Procedures: Similar as Combine Anterior Pituitary Stimulation Test but without GnRH injection. Blood samples are taken at 0 minute (basal), 30 minutes and 60 minutes after insulin injection for glucose, cortisol and growth hormone (GH) as follows: Time 0 min (basal) Tests Tube Glucose Glucose tube Cortisol, GH 1 plain tube 30 min Glucose Glucose tube Cortisol, GH 1 plain tube 60 min Glucose Glucose tube Cortisol, GH 1 plain tube Label specimens according to sampling time. Send all samples after test is completed to main counter, Pathology Department. d) Gonadotrophin- Releasing Hormones Stimulation Test Procedures: Collect samples into plain tubes for LH and FSH (basal sample). Give 100 ug GnRH. Collect samples into plain tubes at 15 minutes, 30 minutes, 60 minutes and 90 minutes after GnRH injection for Luteinizing Hormone (LH) and Follicular Stimulating Hormone (FSH). Time Tests Tube 0 min (basal) FSH, LH 1 plain tube 15 min FSH, LH 1 plain tube 30 min FSH, LH 1 plain tube 60 min FSH, LH 1 plain tube 90 min FSH, LH 1 plain tube Label specimens according to sampling time. Send all samples to main counter Pathology Department 2. Pituitary surgery assessment a) b) Pre-operative assessment Morning serum cortisol Thyroid Function Test (TSH, FT4) Prolactin, LH, FSH GH Testosterone for man Estradiol for woman Post-operative assessment (2-4 days after surgery) Steroid coverage with hydrocortisone is administered immediately before, during and after surgery. If adrenal function was normal before surgery, hydrocortisone is stopped on second or third post-operative day. c) 24 hours after stopping – take morning blood for cortisol Follow up assessment ( one month after surgery) FT4 Testosterone for man Estradiol for woman Cortisol and ACTH at 9.00 am and Short Synacthen test, even if function is subnormal after surgery. ACTH deficiency after surgery is often transient. After pituitary irradiation, patient should be evaluated at least once per year with measurement of FT4, estradiol (if female), testosterone (if male), FSH, LH, prolactin, cortisol, ACTH and Short Synacthen Test. 3. Acromegaly a) Screening and biochemical diagnosis 2 tests must be done to attain biochemical diagnosis of active acromegaly. Measure IGF 1 level according to age-adjusted reference. Perform oral glucose tolerance test with 75g oral glucose after at least 8 hours of overnight fasting. Active acromegaly is indicated by elevated IGF 1 and failure of GH to be suppressed below 1 ng/ml. GH may not be suppressed in poorly controlled diabetes mellitus, severe illness, chronic liver disease and chronic kidney disease. b) Other biochemical tests Serum prolactin ACTH and cortisol (morning sample) TFT LH, FSH, testosterone (male), estradiol (female) – morning sample Fasting serum lipids RP, uric acid LFT, calcium, phosphate Urine FEME Assessment of Posterior Pituitary Hormone Posterior pituitary secretes vasopressin (ADH) and oxytocin. These hormones are synthesized in hypothalamus and pass down nerve axons into the posterior pituitary and released into the circulation. 1. Diabetes Insipidus (DI) Lack of ADH caused by pituitary/hypothalamic disease (cranial DI) or failure of kidney to respond to ADH (nephrogenic DI) Presented with polyuria –urine volume >3 L/day common causes of polyuria such as diabetes mellitus , hypokalemia , hypercalcemia and diuretic therapy have been excluded Measure serum and urine osmolality and sodium If serum osmolality ≥ 295 mOsm/kg, urine osmolality is < 300 mOsm/kg and sodium ≥145 mmol/l - Diagnosis of Diabetes Insipidus is unlikely and not for Fluid Deprivation test a) If diagnosis is in doubt; perform Fluid Deprivation test Protocol for Fluid Deprivation Test Procedure Allow fluids overnight before test and give light breakfast with no fluid; no smoking permitted Weigh patient Allow no fluid for 8hours; patient must be under constant supervision Every 2 hours - Weigh patient (stop test is weight falls by > 5% initial body weight) - Measure urine volume and osmolality - Measure plasma osmolality ( stop test if osmolality >300 ) After 8 hours - Allow patient to drink ( no more than twice urine volume of period of fluid deprivation, to avoid acute hyponatraemia) and give 2 µg desmopressin i.m Measure urine osmolality every 4 hours for further 16 hours Interpretation: Algorithm for the investigation of polyuria. polyuria measure: blood glucose plasma creatinine potassium calcium abnormal diagnosis normal fluid deprivation test Urine osmolality (mmol/kg) after: 8 h fluid desmopressin deprivation <300 >750 Cranial diabetes insipidus <300 <300 Nephrogenic >750 >750 300-750 <750 diabetes insipidus Primary polydipsia Non-diagnostic Adapted from Clinical Chemistry Sixth Edition, William J Marshall & Stephen K Bangert, Mosby, 2008, pg 152 10.2 ADRENAL DISORDERS Disorders of Adrenal Cortex Adrenal hypofunction (Addison’s Disease) 1. a.Short Synacthen Test/Cosyntropin Test High index of suspicion is required to diagnose adrenal insufficiency. Indications for screening: – Unexplained hyponatremia. – Prolonged corticosteroid or traditional medication ingestion. – Bilateral adrenal mass. Screening is by doing short synacthen test. Procedure: Take blood sample for baseline cortisol level (0 minutes). Give 250ug cosyntropin (synthetic ACTH) intramuscularly or intravenously. Take samples at 30 minutes and 60 minutes after injection for cortisol level. Time Tests Tube 0 min (basal) Cortisol 1 plain tube 30 min Cortisol 1 plain tube 60 min Cortisol 1 plain tube Interpretation: Normal response is cortisol peak is greater than 550 nmol/l. Patient with atrophy of adrenal cortex (exogenous steroid / pituitary or hypothalamic disease) shows slight rise in serum cortisol. 2. Adrenal Hyperfunction (Cushing’s syndrome) Screening tests should be done in patients: – With multiple and progressive features of Cushing syndrome – With adrenal incidentaloma. – After excluding exogenous steroid intake. Screening tests are: i. 24-hours urine free cortisol: if less than 380 nmol/day, Cushing syndrome is excluded and if level is 3-4 times greater than upper limit normal, suggestive of Cushing syndrome. ii. Overnight Low Dose Dexamethasone Suppression Test (OLDDST) Procedure: – Give 1 mg dexamethasone orally at 2300 or 2400 hours. – Fill up the request form complete with clinical summary and request test mentioned above. – Collect blood at 8.00 am the next morning for determination of serum cortisol and send to main counter, Pathology Department. Interpretation: In normal subjects, serum cortisol is suppressed to less than 50 nmol/l. Serum cortisol level of more than 50 nmol/l can also be seen in cases of stress, obesity, infection, acute or chronic illness, alcohol abuse, severe depression, oral contraceptive, pregnancy, estrogen therapy, failure to take dexamethasone, or treatment with diphenylhydantoin phenobarbital (enhancement of dexamethasone metabolism). iii. Low Dose Dexamethasone Suppression Test Procedure: or – At 9.00am on 1st day of test, collect blood for serum cortisol (basal) and request test mentioned above. – Immediately after sampling, give 0.5mg dexamethasone orally every 6 hrs for 2 days (8 times). – Collect blood for serum cortisol 6 hours after last dose of 0.5mg dexamethasone and send to main counter Pathology Department. Note: Ensure the times are followed strictly and with full compliance. Day 1 Sample taken for serum cortisol. Day 2 0900 am (basal) - Day 3 0900 am Drug given: 0.5mg 0900 am dexamethasone every 6 hours (8 1500 pm times) 0300 am 0300 dose) 0900 am - 2100 pm 1500 pm - - 2100 pm - am (last Interpretation: In normal subjects, serum cortisol will be suppressed to <50nmol/l. After 2 concordantly positive screening tests, localization tests are recommended, which include: iv. Plasma ACTH Procedure: – Blood should be taken together with serum cortisol at 9am. – Keep the tube in ice water bath and send to lab for centrifuged and frozen as soon as possible to avoid falsely low result. Interpretation: – ACTH < 5 ng/L (<1 pmol/L): ACTH independent Cushing → proceed with CT scan of adrenals. – ACTH >15 ng/L (>3 pmol/L): ACTH dependent Cushing → proceed with MRI pituitary/ CXR. v. Bilateral inferior petrosal sinus sampling: 11. 12. For localization of pituitary tumour (Cushing disease). REFERENCES Special Endocrinology Test Protocols for Adults ,Endocrinology Unit, Department of MedicineHospital Putrajaya, 2010 Clinical Chemistry Sixth Edition, William J Marshall & Stephen K Bangert, Mosby, 2008 CONTACT NUMBERS Location Ext. Direct Line Bilik Ketua Unit 5630 03-26155630 Scientific Officer Room 5611 03-26155611 Medical Officer Room 7530 03-26157530 Laboratory 5284 03-26155284 TESTS AVAILABLE AT CHEMICAL PATHOLOGY UNIT (ACCORDING TO ALPHABETICAL ORDER) NO TEST SPECIMEN TYPE CONTAINER VOLUME TAT 1 Blood Blood EDTA tube in ice Plain tube 3 ml 2 Adenocorticotrophic Hormone (ACTH) Alpha-1-antitrypsin 3 Caeruloplasmin Blood Plain tube 3 ml 5 working days 5 working days 5 working days 4 Catecholamines : Urine 24 hrs urine container with 10mL of 25% HCL 24 hrs urine collection 3 ml 20 working days REFERENCE RANGE ≤ 10.2 pmol/L REMARK Packed with ice 0.9 – 2.0 g/L Male : 0.15 – 0.30 g/L Female : 0.16 – 0.45 g/L Reference range for 24 hour urine catecholamines ≥750mL : Epinephrine : 0.5 - 20ug/24 hrs Norepinephrine : 15.0 – 80.0ug/24 hrs Dopamine : 64- 400ug/24 hrs Reference range for random urine catecholamines < 750mL Epinephrine : < 2 yr : < 75.0 ug/g creatinine 2 – 4 yr : < 57.0 ug/g creatinine 5 – 9 yr : < 35.0 ug/g creatinine 10 – 19 yr :< 34.0 ug/g creatinine Norepinephrine : < 2 yr : < 420.0 ug/g creatinine 2 – 4 yr : < 120.0 ug/g creatinine 5 – 9 yr: < 89.0 ug/g creatinine 10 – 19 yr :< 82.0 ug/g creatinine Rejection criteria : i) Inadequate urine collection (Adult < 500 ml ii) Urine pH > 5. Dopamine : < 2 yr : < 3000.0 ug/g creatinine 2 – 4 yr : < 1533.0 ug/g creatinine 5 – 9 yr: < 1048.0 ug/g creatinine 10 – 19 yr :< 545.0 ug/g creatinine 5 Cholinesterase Blood Plain tube 3 ml 1 working day Male and Children; Female (≥ 40 years old) : 5320 – 12,920 U/L Female (16 – 39 years old), not pregnant, not taking contraceptives : 4260 – 11,250 U/L 6 Cortisol Blood Plain tube 3 ml 3 working days Morning Cortisol : 171 – 536 nmol/L Midnight Cortisol : 64 – 327 nmol/L Urine 24 hrs urine container without preservative 24 hrs urine collection 5 working days 24 hrs Urine Cortisol : 100 – 379 nmol/24 hrs 5 working days 10 working days 298 – 2350 pmol/L 5 working days Female (Adult) : Follicular phase : 45.4 - 854 pmol/L Ovulation phase : 151 - 1461 pmol/L Luteal Phase : 81.9 – 1251 pmol/L Post-menopausal : < 18.4 – 505 pmol/L 7 C-Peptide Blood Plain tube 3 ml 8 Dehydroepiondosterone Sulphate (DHEAS) Blood Plain tube 3 ml 9 Estradiol Blood Plain tube 3 ml 24 hours urine collection with volume ≥500 ml Male : 2.20 – 15.20 umol/L Female : 0.95 – 11.70 umol/L Blood taking at Day 2 to Day 5 menses Male (Adult) : 94.8 – 223 pmol/L 10 Ferritin Blood Plain tube 3.5 ml 10 working days Children : < 1yr : 12 – 327 ug/L 1 – 6 yr : 4 – 67 ug/L Male : 7 – 17 yr : 14 – 152 ug/L > 17 yr : 30 – 400 ug/L Female : 7 – 17 yr : 7 – 84 ug/L > 17 yr : 13 – 150 ug/L 11 Folate Blood Plain tube 3.5 ml 12.0 – 43.9 nmol/L 12 Follicle Stimulating Hormone (FSH) Blood Plain tube 3 ml 10 working days 5 working days Female : Follicular phase : 3.5 – 12.5 IU/L Ovulatory phase : 4.7 – 21.5 IU/L Luteal Phase : 1.7 – 7.7 IU/L Post-menopausal : 25.8 – 134.8 IU/L Male (Adult) :1.5 – 12.4 IU/L Children : Boys : < 5 yr : 0.2 – 2.8 IU/L 6 – 10 yr : 0.4 – 3.8 IU/L 11 – 13 yr : 0.4 – 4.6 IU/L 14 – 17 yr : 1.5 – 12.9 IU/L Girls : < 5 yr : 0.2 – 11.1 IU/L 6 – 10 yr : 0.3 – 11.1 IU/L 11 – 13 yr : 2.1 – 11.1 IU/L 14 – 17 yr : 1.6 – 17.0 IU/L 13 Free Thyroxine (FT4) Blood Plain tube 3 ml 3 working days Children : Newborns : 11.0 – 32.0 pmol/L 6 d – 3 mth : 11.5 – 28.3 pmol/L Blood taking at Day 2 to Day 5 menses 4 – 12 mth : 11.9 – 25.6 pmol/L 1 – 6 yr : 12.3 – 22.8 pmol/L 7 – 11 yr : 12.5 – 21.5 pmol/L 12 – 20 yr : 12.6 – 21.0 pmol/L Adults : 12.0 – 22.0 pmol/L 14 Free Triiodothyronine (FT3) Blood Plain tube 3 ml 5 working days Children : Newborns : 2.7 – 9.7 pmol/L 6 d – 3 mth : 3.0 – 9.3 pmol/L 4 – 12 mth : 3.3 – 9.0 pmol/L 1 – 6 yr : 3.7 – 8.5 pmol/L 7 – 11 yr : 3.9 – 8.0 pmol/L 12 – 20 yr : 3.9 – 7.7 pmol/L Adults, euthyroid : 3.1 – 6.8 pmol/L 15 Gamma Glutamyl Transferase (GGT) Blood Plain tube 3 ml 5 working days Male : < 60 U/L Female : < 40 U/L 16 Growth Hormone Blood Plain tube 3 ml 10 working days Male : ≤ 3 ug/L Female : ≤ 8 ug/L 17 Haptoglobin Blood Plain tube 3 ml 0.30 – 2.00 g/L 18 Haemoglobin A1c (HbA1c) Blood EDTA tube 3 ml 5 working days 3 working days 19 Homocysteine Blood 3 ml Immunoglobulin G (IgG) Blood 21 Immunoglobulin A (IgA) Blood Plain tube 3 ml 22 Immunoglobulin M (IgM) Blood Plain tube 3 ml 23 Insulin Blood Plain tube 3 ml 24 Intact Parathyroid Hormone (IPTH) Blood 20 working days 5 working days 5 working days 5 working days 10 working days 5 working days < 15 umol/L 20 Plain tube in ice Plain tube Plain tube 3 ml 3 ml NGSP (< 6.5 %) / IFCC (< 48 mmol/mol) - Optimal Glycaemic Control 7.0 – 16.0 g/L 0.7 – 4.00 g/L 0.4 – 2.3 g/L ≤ 29.1 uIU/mL 1.3 – 6.8 pmol/L Packed with ice 25 Iron (Fe) Blood Plain tube 3 ml 26 Luteinising Hormone (LH) Blood Plain tube 3 ml 10 working days 5 working days 5.8 – 34.5 umol/L Female : Follicular phase : 2.4 – 12.6 IU/L Ovulatory phase : 14.0 – 95.6 IU/L Luteal Phase : 1.0 – 11.4 IU/L Post-menopausal : 7.7 – 58.5 IU/L Blood taking at Day 2 to Day 5 menses Male : 1.7 – 8.6 IU/L Children : Boys : < 1 yr : < 0.4 IU/L 1 – 5 yr : < 1.3 IU/L 6 – 10 yr : < 1.4 IU/L 11 – 13 yr : 0.1 – 7.8 IU/L 14 – 17 yr : 1.3 – 9.8 IU/L Girls : < 1 yr : < 0.4 IU/L 1 – 5 yr : < 0.5 IU/L 6 – 10 yr : < 3.1 IU/L 11 – 13 yr : < 11.9 IU/L 14 – 17 yr : 0.5 – 41.7 IU/L 27 Paraproteins / Protein electrophoresis Blood Plain tube 3 ml Urine 24 hrs urine container or 50 ml sterile container 5 ml Albumin : 53.8 – 65.2 % or 32.3 – 39.1 g/L Alpha-1- globulins : 1.1 – 3.7 % or 0.7 – 2.2 g/L Alpha-2-globulins : 8.5– 14.5 % or 5.1 – 8.7 g/L 10 working days Beta globulins : 8.6 – 14.8 % or 5.2 – 8.9 g/L Gamma globulins : 9.2– 18.2 % or 5.5 – 10.9 g/L Blood and urine sample must be sent together. 28 Progesterone Blood Plain tube 3 ml 5 working days Female : Follicular phase : 0.6 – 4.7 nmol/L Ovulatory phase : 2.4 – 9.4 nmol/L Luteal Phase : 5.3 – 86 nmol/L Post-menopausal : 0.3 – 2.5 nmol/L Male (Adult) : 0.7 – 4.3 nmol/L 29 Prolactin Blood Plain tube 3 ml 5 working days Male : 98 – 456 mIU/L Female : 127 – 637 mIU/L 30 Testosterone Blood Plain tube 3 ml 5 working days Female : 0.22 – 2.9 nmol/L Male : 9.9 – 27.8 nmol/L 31 Thyroid Stimulating Hormone (TSH) Blood Plain tube 3 ml 3 working days Children : Newborns : 0.70 – 15.2 mIU/L 6 d – 3 mth : 0.72 -11 mIU/L 4 – 12 mth : 0.73 – 8.35 mIU/L 1 – 6 yr : 0.70 – 5.97 mIU/L 7 – 11 yr : 0.60 – 4.84 mIU/L 12 – 20 yr : 0.51 – 4.30 mIU/L Adult : 0.27 – 4.20 mIU/L 32 Transferrin Blood Plain tube 3 ml 33 Unsaturated Iron Binding Capacity (UIBC) Blood Plain tube 3 ml 34 Vitamin B12 Blood Plain tube 3 ml 5 working days 10 working days 10 working days 2.0- 3.6 g/L Male : 22.3 – 61.7 umol/L Female : 24.2 – 70.1 umol/L 156 – 698 pmol/L Blood taking at Day 21 of menses