Neonatal Jaundice or Hyperbilirubinemia: Differential Diagnosis

DDx

Unconjugated No Hemolysis Physiologic jaundice Breast milk jaundice Infant of mother with diabetes Internal hemorrhage Polycythemia Hypothyroidism Immune thrombocytopenia Gilbert syndrome, Crigler-Najjar syndrome, Pyloric stenosis Hemolysis present Blood group...

Atopic Dermatitis (Eczema): Differential Diagnosis

DDx

Atopic dermatitis Seborrheic dermatitis Irritant contact dermatitis Irritant hand eczema / Irritant hand dermatitis (housewives’ eczema or detergent hands) – from repeated exposure to various chemicals and hand washing. Allergic contact dermatitis e.g....

Neck Pain, Differential Diagnosis

DDx

Neck strain, eg, poor sleeping posture, whiplash injury Herniated disk (discogenic neck pain) Axial neck pain Whiplash associated disorder (WAD) Radiculopathy Cervical myelopathy Shoulder disorder Compression fracture Osteoarthritis, eg, cervical spondylosis seen on...

Low Back Pain, Differential Diagnosis

DDx

Muscular strain Osteoarthritis – Hip osteoarthritis Herniated disk Spinal stenosis Cauda equina tumor Sciatica Sacroiliitis, eg, ankylosing spondylitis Idiopathic (sprain, strain) Spondylosis (disk, annulus, facet) Compression fracture – e.g. caused...

Non-Anion Gap Metabolic Acidosis, Causes and Differential Diagnosis (USED CARP and HARD UP)

ACID-BASE DISTURBANCES, DDx

Causes of Normal Anion Gap (Hyperchloremic) Metabolic Acidosis Non-anion gap metabolic acidosis is by definition hyperchloremic. Bicarb is lost from the system directly without taking up the hydrogen from a conjugate acid and leaving behind a conjugate base to...

Hemolytic Anemia – Differential Diagnosis

DDx

Alloimmune: Transfusion reactions, hemolytic disease of the fetus and newborn. Neonatal DAT is positive. Autoimmune hemolytic anemia: Warm or cold autoimmune hemolytic anemia. DAT positive. Drug-induced: Drug-induced thrombotic microangiopathy, drug-induced immune...