28

Clinical laboratory test

Embed Size (px)

Citation preview

Page 1: Clinical laboratory test
Page 2: Clinical laboratory test
Page 3: Clinical laboratory test
Page 4: Clinical laboratory test
Page 5: Clinical laboratory test

• HAEMATOLOGY TESTS• LIVER FUNCTION TESTS• KIDNEY FUNCTION TESTS• CARDIAC MARKERS• GTU QUESTIONS• REFERENCES

FLOW OF PRSENTATION

Page 6: Clinical laboratory test
Page 7: Clinical laboratory test
Page 8: Clinical laboratory test

BLOOD TESTS

• Bleeding time : <8 minutes• Cloting time : 1-3 minutes• Prothrombine time: 8.5-10.5 seconds

CAPILLARY

PLATELETS

THROMBOCYTOPENIAPLATELET DYSFUNCTION

BLEEDING TIME INCREASE

OTHER CAUSES OF ABNORMAL BLEEDING TIME• NSAIDS• ANTI-COAGULANTS

CAPILLARY INJURY TISSUE FACTORE

ACTIVATED X

Ca+2

PROTHROMBINASE

FACTORE V

Ca+2THROMBIN

PROTHROMBIN

FIBRINOGEN

FIBRIN

PROTHROMBINE TIME INCREASES• WARFARIN• DIMINISHES CLOTTING FACTORS DUE TO LIVER DISEASE• VITAMIN K DEFICIENCY

CLOTTING TIME• UNFRACTIONATED HEPARIN THERAPY• FACTOR DEFICIENCY

Page 9: Clinical laboratory test
Page 10: Clinical laboratory test

BLOOD TESTS

• MCV : 80-101 fl• MCHC : 31.5-34.5 mg/dl

• MCV : MEAN CORPUSCULAR VOLUME

NORMOCYTES MACROCYTES MICROCYTES

• MCHC : MEAN CORPUSCULAR HEMOGLOBIN CONTENT

NORMOCHROMIC MACROCHROMIC MICROCHROMICMCV

NORMOCHROMIC

MACROCHROMIC

MICROCHROMIC

NORMOCYTES MACROCYTESMICROCYTES

MCH

C

Page 11: Clinical laboratory test
Page 12: Clinical laboratory test

ESR: ERYTHROCYTE SEDIMENTATION RATE

AFFECT BY:• IMMUNOGLOBULINS• FIBRINOGEN

INDICATION OF INFLAMMATION

APPLICATION:• UNEXPECTED FEVER• ARTHRITIS• MUSCLE SYMPTOMS

• ESR : 0.10 mm/hr• BUN: 7-21 mg/dL• TRANSFERRIN : 1.7/3.4 gm/L• FERITIN : 30-400 ng/ml

BLOOD TESTS

Page 13: Clinical laboratory test

CHOLESTEROL : 160-200 mg/dL TRIGLYCERIDES : 50-150 mg/dL GLYCOSYLATED Hb : 5-6.5 % FASTING BLOOD SUGAR : 3.3-6 mmol/L PO2 : 8-10 mmHg PCO2 : 35-45 mmHg

OTHER BLOOD TESTS

Page 14: Clinical laboratory test
Page 15: Clinical laboratory test

URINE ANALYSIS

ColourOdourVolumeSpecific gravity

Page 16: Clinical laboratory test

BLOOD EXAMINATION

BUN : 7-21 mg/dlURIC ACID : 3.7-7 mg/dlSerum Creatinine : 0.8-1.3 mg/dl (men), 0.6-1 mg/dl (women)

URIC ACID

PURINES LIVER AND INTESTINE URIC ACID

65 %KIDNEY

EXCRETION

INTESTINEINDICATION:• RENAL FAILURE• RENAL DISEASES• GOUT

CREATININE

KIDNEYARGININEGLYCINE

GUANIDINO ACETATE

CREATININE

LIVER

MUSCLE

PHOSPHOCREATININE

CREATININE

MUSCLE

• LOW SERUM CREATININE: LOW MUSCLE MASS

• HIGH SERUM CREATININE: ACUTE KIDNEY INJURY, CHRONIC KIDNEY DISEASE KIDNEY

Page 17: Clinical laboratory test

Creatinine clearance = (140-age)*weight in kg/ s.creatinine*72

GFR MEASUREMENT

CREATININE KIDNEY FILTERED BY CAPSULE

NOT ABSORB OR NOT SECRETED BY ANY OTHER PART

OF NEPHRONE

Page 18: Clinical laboratory test

GFR MEASUREMENT

INULINE:

C = --------U*V

PC = clearance.

U = urinary concentration

V = plasma concentration

P = urine volume

KIDNEY FILTERED BY CAPSULE

NOT ABSORB OR NOT SECRETED BY ANY OTHER PART

OF NEPHRONE

KNOWN CONC. OF INULINE IS GIVEN

IV ROUTE

Page 19: Clinical laboratory test
Page 20: Clinical laboratory test

SPLEENSPLEEN

SPLEENSPLEEN

SPLEENSPLEEN

BILIVERDIN BILIRUBIN

BLOOD VESSELS

AA

A

AAA

LIVER

BLOOD

SINUSOIDAL MEMBRANE

HEPATOCYTES

AAA

SMOOTHENDOPLASMIC RETICULUM

U

U

INTESTINE

U

STOOL PIGMENT

RBC BILIRUBIN

Page 21: Clinical laboratory test

LIPIDS

LIVER INJURY

• PGA index• Prothrombine time• γ- glutamyl transferase• Apo1-A protein

ALCOHOL

• Cholesterol Acyltransferase• Lipoprotein lipases

CHOLESTIC

• Lipoprotein X

Page 22: Clinical laboratory test

BLOOD

SINUSOIDAL MEMBRANE

HEPATOCYTES

SINUSOIDAL MEMBRANE

HEPATOCYTES

HEPATOCYTES

ASTALT

ALT

AST

• HEPATOCELLULAR INJURY• ALCOHOLIC INDUCED

INJURY• HEPATITIS

AST/ALT

Page 23: Clinical laboratory test

AST/ALT AMINOACIDS

GLUTAMATE KETOACIDS

VIT. B6 ALCOHOL

Page 24: Clinical laboratory test

ALBUMIN

• SYNTHESIZED IN THE LIVER• MOST ABUNDANT PROTEIN• WATER SOLUBLE

• DECREASED PRODUCTION (MAL NUTRITION, LOW PROTEIN DIET)• CIRRHOSIS OF LIVER• EXCESS EXCRETION BY KIDNEY• PROLONGE DIARHHOEA

Page 25: Clinical laboratory test

CARDIAC MARKER TROPONIN

COMPLEX OF THREE PROTEINSTROPOMYOSIN SUBUNIT+ INHIBITORY SUBUNIT+ CALCIUM BINDING SUBUNIT

CA+2

ACTIN + MYOSININ CARDIAC MYOCYTES THIS PROTEIN BOUND TO MUSCLE FIBRESSO,MYOCARDIAL INFRACTION ITS RELEASED WITHIN 24 HOURS

Page 26: Clinical laboratory test

REFERENCES

• Gerard J. Tortora, Bryan Derrickson. “Principle of anatomy and physiology”. 12TH Edition.

• Roger walker. “clinical pharmacy and therapeutics”. 5TH Edition.• Emedicine.Medscape.com

Page 27: Clinical laboratory test

GTU QUESTIONS

• DISCRIBE LIVER FUNCTION TESTS.• CLASSIFY ANEMIA.• DISCRIBE VARIOUS HAEMATOLOGICAL TESTS

Page 28: Clinical laboratory test

THANK YOU