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Rizwan Ullah: Clinical Insight Through Lab Values
Rizwan Ullah/LinkedIn
May 3, 2026, 16:11

Rizwan Ullah: Clinical Insight Through Lab Values

Rizwan Ullah, Medical Lab Technologist at Pakistan Red Crescent, posted on LinkedIn:

“1. Hb is decreased, MCV is decreased, RBC is decreased, indicating iron deficiency anemia

Microcytic anemia due to low iron, resulting in small RBCs

  • Hb is increased, RBC is increased, indicating polycythemia
  • Hb is decreased, MCV is decreased, RBC is increased with target cells present, indicating thalassemia

2.Hb is decreased, MCV is increased, indicating megaloblastic anemia

  • B12 or folate deficiency leads to defective DNA and large RBCs

3.Reticulocyte count is increased, indicating hemolysis Increased immature RBCs indicate marrow response to RBC loss or destruction

  • Reticulocyte count is decreased, indicating aplastic anemia or bone marrow failure

4.Ferritin is increased, TIBC is decreased, indicating anemia of chronic disease

  • Inflammation traps iron, causing high storage and low transport
  • Ferritin is decreased, TIBC is increased, indicating iron deficiency anemia

5.Hb electrophoresis shows HbS present, indicating sickle cell anemia

  • Abnormal hemoglobin leads to sickle-shaped RBCs and vaso-occlusion

6.HbA2 is increased, indicating beta-thalassemia

7.Smudge cells are present, indicating chronic lymphocytic leukemia

Fragile lymphocytes rupture on smear. Classic for CLL.

8.Reed-Sternberg cells are present, indicating Hodgkin lymphoma

Large binucleated owl-eye cells

9.Platelet count is decreased, indicating thrombocytopenia

  • Platelet count less than 150000, associated with bleeding risk
  • Platelet count is increased, indicating thrombocytosis

10.PT is prolonged, aPTT is prolonged, indicating disseminated intravascular coagulation

  • Both pathways are affected. Consumptive coagulophathy.

11.aPTT is prolonged only, indicating hemophilia or heparin use

  • Intrinsic pathway defect. Factor VIII/IX deficiency.
  • PT is prolonged only, indicating factor VII deficiency or warfarin use

12.Bleeding time is prolonged, indicating a platelet disorder

  • Platelet function or number abnormality

13.ESR is increased, indicating inflammation or tuberculosis

Non-specific; fibrinogen increases sedimentation rate

14.LDH is increased, indicating hemolysis

Also elevated in myocardial infarction and tumor lysis

15.Coombs test is positive, indicating autoimmune hemolytic anemia

Antibodies are attached to RBCs

16.Troponin is increased, indicating myocardial infarction

Marker of cardiac muscle damage

17.CK-MB is increased, indicating early myocardial infarction

Rises within 4 to 6 hours.Less specific than troponin.

18.BNP is increased, indicating heart failure

Released due to ventricular stretch

19.D-dimer is increased, indicating pulmonary embolism or deep vein thrombosis

Reflects clot formation and breakdown

20.HbA1c is increased, indicating diabetes mellitus

Reflects average glucose over 3 months greater than 6.5 percent

HbA1c is normal, indicating good glycemic control

21.Serum amylase is increased, indicating acute pancreatitis

Rises early but is not specific

22.Serum lipase is increased, indicating pancreatitis and is more specific

Remains elevated longer

23.AST and ALT are increased, indicating hepatitis

ALT is more liver-specific.”

Rizwan Ullah: Clinical Insight Through Lab Values

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