General Medicine**

 **General Medicine** is a core subject in **final-year MBBS**, but its basics start in **second-year MBBS** as part of pathology, pharmacology, microbiology, and clinical postings. It focuses on **diagnosing and treating common diseases affecting different organ systems**. --- ## **Main Topics in General Medicine** ### **1. History Taking & Clinical Examination** - **General Examination** (Pulse, BP, Pallor, Icterus, Cyanosis, Edema, Lymphadenopathy) - **Systemic Examination** (CVS, Respiratory, CNS, Abdomen) --- ### **2. Common Diseases & Their Diagnosis & Treatment** #### **A. Cardiovascular System (CVS)** - **Hypertension** - **Diagnosis**: BP monitoring, ECG, Fundoscopy - **Treatment**: Lifestyle changes, **ACE inhibitors, Beta-blockers, Diuretics** - **Coronary Artery Disease (CAD) / Myocardial Infarction (Heart Attack)** - **Diagnosis**: ECG (ST Elevation), Troponin test - **Treatment**: MONA (Morphine, Oxygen, Nitrates, Aspirin), PCI, Statins - **Heart Failure** - **Diagnosis**: Echocardiography, BNP levels - **Treatment**: **Diuretics, ACE inhibitors, Beta-blockers** --- #### **B. Respiratory System** - **Pneumonia** - **Diagnosis**: Chest X-ray, Sputum culture - **Treatment**: **Antibiotics (Amoxicillin, Azithromycin), Oxygen therapy** - **Tuberculosis (TB)** - **Diagnosis**: Mantoux test, Chest X-ray, GeneXpert - **Treatment**: **Anti-TB drugs (Rifampicin, Isoniazid, Pyrazinamide, Ethambutol - DOTS therapy)** - **COPD (Chronic Obstructive Pulmonary Disease)** - **Diagnosis**: Spirometry, Chest X-ray - **Treatment**: **Bronchodilators (Salbutamol, Tiotropium), Steroids, Oxygen** --- #### **C. Gastrointestinal System (GIT)** - **Peptic Ulcer Disease (PUD)** - **Diagnosis**: Endoscopy, H. pylori test - **Treatment**: **PPIs (Omeprazole), H. pylori eradication (Clarithromycin + Amoxicillin)** - **Liver Cirrhosis** - **Diagnosis**: LFTs, Ultrasound - **Treatment**: **Diuretics, Lactulose, Nutritional support** - **Hepatitis (A, B, C, E)** - **Diagnosis**: Serology (HBsAg, Anti-HCV) - **Treatment**: **Supportive (A, E), Antivirals (B, C)** --- #### **D. Endocrine System** - **Diabetes Mellitus** - **Diagnosis**: Fasting Blood Sugar (>126 mg/dL), HbA1c (>6.5%) - **Treatment**: **Metformin, Insulin, Lifestyle modifications** - **Thyroid Disorders (Hyper & Hypothyroidism)** - **Diagnosis**: T3, T4, TSH levels - **Treatment**: **Levothyroxine (Hypo), Carbimazole/PTU (Hyper)** --- #### **E. Central Nervous System (CNS)** - **Stroke (Ischemic vs. Hemorrhagic)** - **Diagnosis**: CT/MRI Brain - **Treatment**: **tPA for ischemic stroke, BP control for hemorrhagic stroke** - **Meningitis** - **Diagnosis**: Lumbar puncture, CSF analysis - **Treatment**: **Ceftriaxone, Steroids** - **Seizures / Epilepsy** - **Diagnosis**: EEG, MRI Brain - **Treatment**: **Phenytoin, Valproate, Carbamazepine** --- #### **F. Kidney & Urinary System** - **Acute Kidney Injury (AKI)** - **Diagnosis**: Serum Creatinine, Urine Output - **Treatment**: **Fluids, Diuretics, Dialysis (if severe)** - **Chronic Kidney Disease (CKD)** - **Diagnosis**: eGFR, Serum Creatinine - **Treatment**: **ACE inhibitors, Dialysis, Kidney transplant (if ESRD)** - **Urinary Tract Infection (UTI)** - **Diagnosis**: Urine Culture - **Treatment**: **Antibiotics (Nitrofurantoin, Ciprofloxacin)** --- #### **G. Infectious Diseases** - **Dengue Fever** - **Diagnosis**: NS1 antigen, Platelet count - **Treatment**: **Fluids, Supportive therapy (No NSAIDs)** - **Malaria** - **Diagnosis**: Peripheral smear, Rapid antigen test - **Treatment**: **Chloroquine, Artemisinin-based therapy** - **COVID-19** - **Diagnosis**: RT-PCR, CT Chest - **Treatment**: **Oxygen, Steroids, Antivirals (Remdesivir)** --- ## **Study Tips for General Medicine** ✅ **Refer to Harrison’s Principles of Internal Medicine** for deep understanding ✅ Use **flowcharts** to differentiate diseases (e.g., **COPD vs Asthma**) ✅ Revise **common investigations & treatments** (e.g., **ECG in MI, LFTs in Cirrhosis**) ✅ Practice **clinical case scenarios** to improve diagnostic skills ---

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