Differential Diagnosis

Question 1

Tiredness DDx

Answer 1

HEMIFADO ICP

H - Hemochromatosis, HF, Hepatitis
E - Endocrine/ Thyroid
M - Malignancy - Leukemia, Lymphoma
I - Infection (STI, HIV, EBV, Travel)
F - Fatigue (Dx of Exclusion)
A - Atypical Pneumonia, Anemia
D - Drugs, Depression (Psych)
O - OSA

I - Immune (PMR, MS)
C - Celiac
P - Period Hx, Pregnancy, Menopause

Question 2

Cough DDx

Answer 2

Infections
- URTI
- Pneumonia
- Pertusis
- TB

Post Viral Cough*
Post-nasal Drip*

Red Flag DDx
- Lung CA
- CHF

Asthma
COPD
Bronchiectasis
Medication*
GORD*
Sarcoidosis
Allergic Alveolitis/Pneumonitis*
Psychogenic Cough

Question 3

Hemoptysis

Answer 3

Lung CA
TB

Pneumonia/ URTI/ Travel
COPD
Pulmonary Embolism
Bronchiectasis

Heart Failure
Rheumatologic (SLE)
Bleeding Disorders and Blood Thinners
Trauma

Pseudo Hemoptysis - Blood Nose/Throat

Question 4

Shortness of Breath DDx

Answer 4

Group 1 - Red flags
Lung CA
CVS – Ischemic Heart Disease
Aortic Stenosis

Group 2
COPD, Asthma, Bronchiectasis

Group 3
ILD and HF

Group 4 – Infections
Pneumonia, TB, Travel

Group 5 – Acute
Pneumothorax
Pulmonary Embolism

Group 6 – Rhematic Dx
Sarcoidosis

Group 7 - Others
Anemia
Hypersensitivity Pneumonitis

Question 5

Post OP Fever DDx

Answer 5

Day 1 – Wind – Atelectasis, Pneumonia
Day 2-3 – Water – UTI**
Day 5 – Wound – Wound(5) Infection (Surgical Site), Thrombophlebitis
Day >= 5 – Walking – DVT and PE
Anytime – Wonder Drugs – Drugs and Malignancy

Sepsis
Febrile Blood Transfusion
URTI/ GE

Question 6

Unwell in Pregnancy DDx

Answer 6

Infection
- UTI/Pyelonepritis*
- STI/PID/Chorioamnionitis
- URTI and Pneumonia
- Gastro-enteritis
- Meningitis

Pre-eclampsia
GDM
Anemia
Cholestasis

Question 7

Pneumonia RF

Answer 7

Smoking and Alcohol
Heart Dx
Lung Dx
Immunocompromised
Memory or Stroke

Question 8

Iron Deficiency Anemia DDx

Answer 8

Intake Diet - Red Meat
Blood Loss - Surgery, Bleeding Episodes, Period
GI Bleed* - PUD, NSAIDS, Bowel CA
Malabsorption - Celiac Disease, IBD
Young - Pregnancy (back to back)

Question 9

Blood Borne Infection DDx (Unwell)

Answer 9

HIV
Hep B
Pseudomonas
Infective Endocarditis

Question 10

Travel Related Infection DDx (Unwell)

Answer 10

AGE
Atypical Pneumonia
Tuberculosis
STI’s - HIV, Hep B, Syphilis, Gonorrhea and Chlamydia
Dengue
Malaria
Infective Endocarditis

Question 11

Recreational Water DDx (Unwell)

Answer 11

Legionella (Atypical Pneumonia)
Pseudomonas
Hepatitis A

Question 12

Sexually Transmitted Infection DDx

Answer 12

HIV, Hep B, Syphilis, Gonorrhea and Chlamydia

Question 13

Feco-Oral Infection DDx

Answer 13

Hepatitis A
Gastro-Enteritis
- Virus – Rotavirus, Adenovirus
- Bacteria – Shigella, Salmonella, Ecola
- Parasites – Giardia, Toxoplasmosis Entamoeba
Toxoplasmosis, and CMV

Question 14

Unwell Pregnant DDx

Answer 14

Infections
- UTI
- STI/PID/Chorioamnionitis
- Meningitis
- URTI/Pneumonia
- AGE
- Travel related

Pregnancy
- Preeclampsia
- GDM
- Anemia
- Cholestasis

Question 15

Chronic Cough

Answer 15

Allergic Rhinitis
Asthma
Post Viral Cough
GERD
Medications - ACEi
Habitual Cough