Resp: Tuberculosis: Free MSRA Podcast

🧫FREE MSRA PODCAST –Tuberculosis (TB)This in-depthrevision session covers everything you need toknow about TB – from transmission and symptoms to diagnostics,management, and complications. Ideal for MSRA prep. 🧠Key Learning Points📌Definition• Tuberculosis (TB) is an airborne bacterial infection caused by Mycobacterium tuberculosis, mainly affecting the lungs but canbecome systemic• Exists as latent TB (dormant, non-infectious) or active TB (symptomatic and infectious) 📌Transmission🗣️ Spread via respiratory droplets– coughing, sneezing, or even talking🏘️ Crowded living conditions increase risk 📌Risk Factors(Mnemonic: CHEST-HII)C – Close contactH – HomelessnessE – Ethnic origin from high-prevalence areasS – Substance misuseT – The elderlyH – HIV/immunosuppressedI – Illnesses like diabetes, renal failure, steroiduseI – Infants and children 📌Pathophysiology• Bacteria areengulfed by macrophages → form granulomas• Latent TB =controlled within granulomas• Active TB =granulomas break down → spread• Miliary TB = widespread dissemination throughthe bloodstream• Reactivation TB = typically affects lung apices 📌Clinical Features🟤Pulmonary TB: Cough >3 weeks, haemoptysis, weight loss,night sweats, fever🟠Extrapulmonary TB:• CNS – meningitis• GU – sterilepyuria• Bones – spinal TB(Pott's disease)• Skin – erythemanodosum• Pericardium –pericardial effusion/constrictive pericarditis 📌Diagnosis🧪Sputum ZN stain (AFB)🧬NAATs & PCR (e.g.GeneXpert MTB/RIF)🧫Culture = gold standard🖼️CXR: upper lobe cavitation💉Mantoux test, IGRA – for latent TB🧠CT/MRI – if extrapulmonary TB suspected 📌Treatment (Mnemonic:R.I.P.E.)• Intensive phase (2months):Rifampicin,Isoniazid, Pyrazinamide, Ethambutol• Continuation phase(4 months):Rifampicin +Isoniazid 📌Latent TB: 3–6 months of mono/dual therapy (e.g. INH +Rifampicin)📌Side Effects &Monitoring• Rifampicin – orange secretions, enzyme inducer, hepatotoxic• Isoniazid – peripheral neuropathy → give Pyridoxine (B6)• Pyrazinamide – gout, hepatotoxic• Ethambutol – optic neuritis → monitor vision 📌Complications❗ Drug resistance – MDR/XDR TB❗ Miliary TB❗ TB meningitis❗ Respiratory failure❗ IRIS (immune reconstitution syndrome in HIV)❗ Relapse, fibrosis, lung damage 📎More TuberculosisMSRA Resources:📝 Revision Notes: https://www.passthemsra.com/topic/tuberculosis-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/tuberculosis-flashcards/💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/tuberculosis-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/tuberculosis-rapid-quiz/🎓 Full Course: https://www.passthemsra.com/courses/respiratory-for-the-msra/ Hashtags#MSRA#MSRARevisionNotes #MSRAFlashcards #TB #Tuberculosis #RIPEDrugs #MSRAAccordions#TBPodcast #PulmonaryTB #LatentTB #MDRTB #MSRAQandANotes #PassTheMSRA #FreeMSRA#MSRAQuestionBank #Respiratory