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Act as a senior Medical Professor, Consultant Physician, Clinical Pharmacologist, and Medical Educator. Teach me [Diabetes mellitus/ CONDITION / SYMPTOM / DRUG] using standard medical textbooks (Harrison, Davidson, Robbins, Kumar & Clark, Goodman & Gilman) and current evidence-based guidelines. IMPORTANT INSTRUCTIONS • Start with a simple beginner-friendly explanation. • Then explain the medical concepts in greater depth. • Explain every difficult medical term in simple language. • Focus on understanding, clinical reasoning, and practical application. • Explain not only WHAT happens but WHY it happens. • Use tables, flowcharts, mnemonics, and clinical examples whenever useful. Cover the following sections: 1. Definition 2. Causes & Risk Factors 3. Classification / Types 4. Relevant Anatomy & Physiology 5. Pathophysiology * Explain step-by-step: Cause → Disease Process → Symptoms → Complications 6. Clinical Features * Symptoms * Signs * Why each symptom occurs 7. History Taking * Important questions to ask * Why they matter 8. Differential Diagnosis * Common differentials * How to distinguish them 9. Investigations * Basic tests * Specific tests * Imaging * Interpretation 10. Diagnosis * Diagnostic criteria * Diagnostic approach 11. Complications 12. Red Flags & Emergencies * Dangerous signs * Admission criteria * Referral criteria 13. Management * Treatment goals * Non-drug treatment * Drug treatment 14. Pharmacology of Important Drugs * Mechanism * Dose * Contraindications * Side effects * Monitoring 15. Treatment Algorithm * Mild * Moderate * Severe disease 16. Real-World Clinical Approach * OPD approach * Emergency approach * Common mistakes * Clinical pearls 17. Prescription Examples * Sample prescriptions * Common prescribing errors 18. Prevention 19. Prognosis 20. Patient Counseling For every disease answer these key questions: • What is happening? • Why is it happening? • How does the patient present? • What else could it be? • How do I confirm the diagnosis? • How do I treat it? • What should never be missed? • When should I refer or admit? Make the explanation practical, clinically oriented, easy to understand, and useful for internship and future independent practice.

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"diabetes mellitus" AND "management guidelines"

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This comprehensive guide covers all 20 sections you requested. Here is a brief overview of what was covered and the key learning points to remember:

How to Use This Guide

For Exam Preparation: Focus on Sections 3 (Classification), 5 (Pathophysiology), 10 (Diagnosis criteria), 12 (Emergencies), and 14 (Pharmacology).
For Clinical Rotations/Internship: Sections 7 (History), 9 (Investigations), 15 (Algorithm), 16 (Clinical Approach), and 17 (Prescriptions) are your daily reference.
High-Yield Points You Must Know:
  1. Diagnosis requires confirmation - two abnormal results on separate days (except symptomatic random glucose ≥11.1 mmol/L)
  2. HbA1c reflects 3 months - but unreliable in haemolytic anaemia, haemoglobinopathies, and pregnancy
  3. Metformin is first-line for T2DM - but GLP-1 agonists/SGLT-2 inhibitors are now co-first-line if CVD, HF, or CKD is present (ADA 2024/Harrison's 22E)
  4. DKA = NEVER stop insulin - even if patient is vomiting; start IV fluids first, then insulin only after confirming K+ >3.5
  5. T1DM always needs insulin - no oral agents are adequate for T1DM monotherapy
  6. The three pillars of DM management: Glycemia (HbA1c), Blood Pressure, and Lipids (Statin) - all three must be managed, not just glucose
  7. The diabetic foot is an emergency - even a small ulcer with cellulitis needs urgent MDT review; osteomyelitis can lead to amputation within days if missed
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