Differential Diagnosis Flashcards
Abdominal Pain DDx
GI DDx
- Bowel CA (Priority)
- IBD,IBS
- GE
- GORD, PUD, Pancreatitis
KUB DDx
- UTI, Cystitis, Pyelonephritis
- Renal Colic, Urinary Retention
- CA
Genital or Pelvic
- EP, PID
- Ovarian Cyst, Mittelschmerz
- Testicular Torsion
- Hernia
Liver, and GB
- Hepatitis, Cholangitis, Cholecystitis*
- HCC
Other Causes
- Respiratory, CVS
- DKA*
- Shingles*
- Mesenteric Ischemia*
More common in Old Px Abdo DDx
Bowel CA
Mesenteric Ischemia
Shingles
Additional Abdo DDx in Young Patient
Celiac Disease
Lactose Intolerance
DKA
Abdominal Trauma DDx
Kidney Injury
Ribs and Lung - Rib Fx, Pneumothorax, Hemothorax
Heart - Cardiac Tamponade
Spleen - Splenic Rupture, Laceration, Hematoma
Pancreas and Bowels
Diarrhea DDx
Acute -> Chronic
GE
Hepatitis A
IBD
Celiac Disease
Lactose Intolerance
Medications (Pseudomembranous/ Drug Induced)
Hyperthyroid
Bowel CA
HIV infection
IBS
Dark Urine DDx
KUB DDx - No Pale Stools
- Cancers
- IgA Nephropathy & PSGN
- UTI
- Renal Colic
- Traumatic Injury
- Excessive Exercise (Rhabdomyolysis)
- Medications (Statins)
- Pseudohematuria (Beetroots)
Liver DDx - Pale Stools
- Hepatitis
- Cancers
- GB Stones
- Cholagitis
- Previous Surgeries
Hypercalcemia DDx
Hyperparathyroidism
Malignancies - Lung, Breast, Kidneys, Leukemia
Tuberculosis, Sarcoidosis
Medications - Calcium, Vit D, Thaizides, Lithium, Antacids
Vit D intoxication
Milk Alkali Syndrome
Pheochromocytoma
Hyperthyroidism
Poldypsia DDx
DM and DI
Multiple Myeloma
Brain Tumor
Thyrotoxicosis
Medications
- Diuretics, Vit. D, Ca
Lifestyle and Diet
- Alcohol, Coffee
- High Salt intake
- Excessive Exercise
HyperCalcemia
- Malignancies
- Hyperparathyroid
- Vit D intoxication
Per-Rectal Bleeding DDx
Bowel CA
Anal Fissure
Hemorrhoids
Inflammatory Bowel Disease
Acute Abdomen - Diverticulitis, Mesenteric Ischemia
Gastroenteritis
Proctitis
Bleeding d/o and Blood thinning Meds
Hyponatremia DDx
Euvolemic
- Hypothyroid,
- SIADH (Malignancy (GI, Lung, Lymphoma), TB, Subdural Hemorrhage, Sarcoidosis, Meds SSRI Carbamazepine)
Hypervolemia - Heart, Kidney, Liver Failure
Hypovolemia - Vomiting, Diarrhea, Diuretics
Pseudohyponatremia - Hyperglycemia, Hyperlipidemia, Hyperproteinemia
Hypokalemia DDx
Loss - Diuretics, Laxative abuse, Vomiting, Diarrhea
Intake - Poor nutrition
Hyperaldosteronism - Muscle Cramps, Weakness, Polyuria
Potassium shift to cells -
- Insulin overdose,
- Beta adrenergic drugs,
- Pheochromocytoma - HA, Racing of the heart, Flushing
Hyperkalemia DDx
Pseudohyperkalemia – Haemolysis
Kidney Failure
Fluid volume depletion - GE
Hypoaldosteronism
Drug induced – NSAIDS, ACE/ARB inhibitors, K sparing diuretics, Triple Whammy
Increased K release from cells
- Tissue Damage – Pancreatitis, Stroke, TIA, ICH, IHD, Sepsis,
- Rhabdomyolysis
Metabolic Derangement - DKA
Swelling in the Leg DDx
Heart Failure
Liver Failure
Renal Failure and Kidney Problem
Hypothyroidism
Lymphedema
DVT
Venous Insufficiency (Varicose Veins)
Medication (Amlodipine)
Infections
Buttocks Pain
Anal Fissure
Hemorrhoids
Perianal Abscess
Pilonidal Abscess and Boil and Fistula
Prostatitis
Proctitis
Bloating and Distension
GI
- Lactose intolerance,
- Celiac,
- IBS,
- Functional dyspepsia
Diabetes
Bowel Obstruction
- Surgeries
Malignancies
- Bowel CA
- Ovarian CA
Ascites
Infective – GE, Giardia
Physiologic – Obesity
