Act as Internalist 👨🏻‍⚕️🫀🩺

🫁 Sarcoidosis.

مرض multisystem granulomatous disease بيتميز بوجود: 🔬 Non-caseating granulomas ⭐ أهم العلامات: 🔹 Bilateral hilar lymphadenopathy 🔹 Pulmonary symptoms: dry cough + dyspnea 🔹 Erythema nodosum 🔹 Uveitis 👁️ 🔹 ↑ ACE و↑ Calcium 🔥 Classic: Bilateral hilar lymphadenopathy + non-caseating granulomas = Sarcoidosis

📌 Löfgren syndrome:

Erythema nodosum + bilateral hilar lymphadenopathy + arthritis + fever.

Behçet Syndrome | متلازمة بهجت مرض التهابي جهازي Systemic vasculitis يتميز بـ Classic triad : 🔹 Recurrent oral ulcers. 🔹 Genital ulcers. 🔹 Uveitis. + Skin lesions & arthritis. 📌 Pathergy test قد يكون Positive.

✓Hampton's hump- It appears as a wedge-shaped pleural-based opacity on chest X-ray, indicating pulmonary infarction from distal embolization. ∆ Classic Association- It Represents hemorrhagic infarction due to pulmonary artery occlusion, seen in ~22% of Pulmonary Embolism cases (low sensitivity) but 82% specific. ∆ Radiology Features- Peripheral dome-shaped density with base at pleura, apex toward hilum, often with pleural effusion in severe PE. • Pairs with Westermark's sign (oligemia). • Prompts anticoagulation, not antibiotics.

#Pusus_Paradoxus

COPD

ملخص asthma

Causes of clubbing #medicine

The Chvostek sign is a clinical sign that someone may have a low blood calcium level( hypocalcemia). The Chvostek sign is the abnormal twitching of muscles that are innervated by the facial nerve . When the facial nerve is tapped in front of the ear, the facial muscles on the same side of the face will contract sporadically (called ipsilateral facial spasm). The muscles that control the nose, lips and eyebrows are often the ones that will spasm. These facial spasms are caused by the nerves that control the muscle being easily excited (called hyperexcitability) due to hypocalcemia

🫀 Percutaneous Coronary Intervention (PCI) What is PCI? Percutaneous Coronary Intervention (PCI), commonly known as coronary angioplasty, is a minimally invasive procedure used to open narrowed or blocked coronary arteries and restore blood flow to the heart muscle. 🔹 Indications ✔ Acute Myocardial Infarction (STEMI & selected NSTEMI) ✔ Symptomatic Coronary Artery Disease (CAD) ✔ Significant Coronary Artery Stenosis causing ischemia 🔹 How is PCI Performed? A catheter is inserted through the radial or femoral artery. Coronary angiography identifies the blockage. A balloon is inflated to widen the narrowed artery. A stent is usually deployed to keep the artery open. 🔹 Benefits: ✅ Rapid restoration of coronary blood flow ✅ Relief of angina symptoms ✅ Reduced myocardial damage during acute MI ✅ Shorter recovery time compared with surgery 🔹 Possible Complications ⚠ Bleeding at the access site ⚠ Coronary artery dissection ⚠ Restenosis or stent thrombosis ⚠ Contrast-induced nephropathy 🔹 Key Message PCI is a life-saving procedure that plays a central role in the management of acute coronary syndromes and obstructive coronary artery disease, improving both symptoms and clinical outcomes. prepared by: Dr/Malak Heyal 🩺

🫀 Coronary Angiography (CAG) What is Coronary Angiography? Coronary Angiography (CAG) is a diagnostic procedure used to visualize the coronary arteries and assess blood flow to the heart. It is considered the gold standard for detecting coronary artery disease (CAD). How is it Performed? 🔹 A thin catheter is inserted through the radial or femoral artery. 🔹 Contrast dye is injected into the coronary arteries. 🔹 X-ray images are taken to identify narrowing or blockages. Common Indications ✅ Chest pain (Angina) ✅ Suspected Coronary Artery Disease ✅ Acute Coronary Syndrome (ACS) ✅ Abnormal stress test results ✅ Evaluation before cardiac surgery Advantages ✔ Accurate assessment of coronary anatomy ✔ Identifies the location and severity of stenosis ✔ Can guide immediate treatment decisions Possible Complications: ⚠ Bleeding or hematoma at the access site ⚠ Allergic reaction to contrast media ⚠ Arrhythmias ⚠ Contrast-induced nephropathy ⚠ Rarely: myocardial infarction, stroke, or vascular injury 📌What Happens After CAG? If a significant blockage is detected, treatment options may include: • Medical therapy • Percutaneous Coronary Intervention (PCI/Stenting) • Coronary Artery Bypass Grafting (CABG) Key Point: 💡 Coronary Angiography remains the definitive investigation for diagnosing coronary artery disease and planning appropriate revascularization strategies. Dr. Malak Heyal ✨🩺

➖➖➖➖➖🔳➖➖➖➖➖ ✨ Diagnosis: Pleural effusion ـــــــــــــــــــــــــــــــــــ ✨ Definition: accumulation of excessive fluid in the pleural space, the potential space that surrounds each lung. ـــــــــــــــــــــــــــــــــ Types: 🔹 Serous fluid (hydrothorax) 🔹 Blood (haemothorax) 🔹 Chyle (chylothorax) 🔹 Pus (pyothorax or empyema) 🔹 Urine (urinothorax) ــــــــــــــــــــــــــــــــ ✨ Causes: 🔹 Congestive heart failure 🔹 Liver cirrhosis 🔹 Severe hypoalbuminemia 🔹 Nephrotic syndrome 🔹 Acute atelectasis ــــــــــــــــــــــــــــــــ ✨ Signs and symptoms: Diagnosed on the basis of medical history and physical examination, and confirmed by chest X-ray. Once the accumulated fluid becomes more than 300ml, there are usually detectable clinical signs, such as decreased chest movement on the affected side, dullness when tapping the fluid, diminished breath sounds on the affected side, decreased vocal resonance and phlegm ➖➖➖➖➖🔳➖➖➖➖➖

🫀 CABG – Coronary Artery Bypass Grafting What is CABG? Coronary Artery Bypass Grafting (CABG) is a surgical procedure used to improve blood flow to the heart in patients with severe coronary artery disease (CAD). It creates a new pathway for blood to bypass blocked or narrowed coronary arteries. 🔬 How is it performed? A healthy blood vessel is taken from another part of the body (commonly the internal mammary artery, radial artery, or saphenous vein) and grafted to restore blood flow beyond the blockage. 📌 Indications for CABG: • Left main coronary artery disease • Triple-vessel coronary artery disease • Severe proximal LAD stenosis • Failed or unsuitable PCI • Diabetes with multivessel CAD (selected cases) ⚠️ Potential Risks: • Bleeding • Infection • Stroke • Arrhythmias • Graft occlusion 💙 Benefits: ✔ Relief of angina symptoms ✔ Improved myocardial perfusion ✔ Better quality of life ✔ Reduced cardiovascular events in selected patients 🩺 Post-operative Care: • Cardiac rehabilitation • Lifestyle modification • Antiplatelet therapy • Lipid control and risk factor management “CABG remains one of the most effective revascularization strategies for complex coronary artery disease.” Prepared by: Dr. Malak Heyal ✨

Oxygen Delivery Masks: Types & Differences 🫁 Oxygen Oxygen masks are used toupplemental oxygen to patients with breathing difficulties. The choice of mask depends on the patient's oxygen needs and clinical condition. 😷 1. Nasal Cannula (NC) Description: A lightweight tube with two small prongs placed inside the nostrils. Flow Rate: 1–6 L/min FiO₂ Delivered: 24–44% Advantages: ✅ Comfortable ✅ Patient can eat and talk ✅ Easy to use Disadvantages: ❌ Limited oxygen concentration ❌ Not suitable for severe hypoxia Best For: Patients with mild oxygen requirements. 😷 2. Simple Face Mask Description: A plastic mask covering the nose and mouth. Flow Rate: 5–10 L/min FiO₂ Delivered: 40–60% Advantages: ✅ Higher oxygen concentration than nasal cannula ✅ Easy to apply Disadvantages: ❌ Patient cannot eat while wearing it ❌ Flow must be at least 5 L/min to prevent CO₂ rebreathing Best For: Patients with moderate oxygen needs. 😷 3. Venturi Mask Description: Uses color-coded adapters to deliver an exact oxygen concentration. Flow Rate: Depends on the adapter. FiO₂ Delivered: 24–60% (precise concentration) Advantages: ✅ Accurate oxygen delivery ✅ Ideal for COPD patients Disadvantages: ❌ More expensive ❌ Slightly bulky Best For: Patients requiring precise oxygen control. 😷 4. Partial Rebreather Mask (PRB) Description: A face mask attached to a reservoir bag without one-way valves. Flow Rate: 6–10 L/min FiO₂ Delivered: 50–70% Advantages: ✅ Delivers higher oxygen concentration Disadvantages: ❌ Reservoir bag must remain partially inflated. Best For: Moderate to severe hypoxia. 😷 5. Non-Rebreather Mask (NRB) Description: A mask with a reservoir bag and one-way valves that prevent room air from entering. Flow Rate: 10–15 L/min FiO₂ Delivered: 60–95% Advantages: ✅ Highest oxygen concentration without intubation ✅ Used in emergencies Disadvantages: ❌ Short-term use only ❌ Patient cannot eat or drink Best For: Severe hypoxia, trauma, shock, and emergency situations. 📊 Quick Comparison DeviceFlow RateFiO₂Best UseNasal Cannula1–6 L/min24–44%Mild hypoxiaSimple Face Mask5–10 L/min40–60%Moderate hypoxiaVenturi MaskVariable24–60%COPD & precise oxygen deliveryPartial Rebreather6–10 L/min50–70%Moderate–Severe hypoxiaNon-Rebreather10–15 L/min60–95%Severe hypoxia & emergencies 💡 Key Points to Remember Nasal Cannula → Most comfortable for low oxygen needs. Simple Mask → Moderate oxygen therapy. Venturi Mask → Most accurate oxygen concentration (especially for COPD). Partial Rebreather → Higher oxygen using a reservoir bag. Non-Rebreather → Delivers the highest oxygen concentration before mechanical ventilation. 🩺 Nursing Tip: Always monitor the patient's SpO₂, respiratory rate, level of consciousness, and overall clinical response, and adjust oxygen therapy according to the healthcare provider's orders and the patient's condition. Dr. Malak Heyal

--- Vital Signs The First Step in Patient Assessment Vital signs are essential measurements that provide valuable information about a patient's overall health and physiological status. They help healthcare professionals detect early signs of illness, monitor treatment effectiveness, and identify emergencies. 🩺 Blood Pressure (BP) Blood pressure measures the force of blood against the walls of the arteries. It is recorded as Systolic/Diastolic (e.g., 120/80 mmHg). Normal: Less than 120/80 mmHg High BP (Hypertension): ≥ 140/90 mmHg Low BP (Hypotension): < 90/60 mmHg Why is it important? Abnormal blood pressure can increase the risk of heart disease, stroke, kidney damage, and shock. --- ❤️ Heart Rate (HR) Heart rate is the number of heartbeats per minute (bpm). Normal Adult: 60–100 bpm Bradycardia: < 60 bpm Tachycardia: > 100 bpm Why is it important? Heart rate reflects the heart's efficiency and can indicate stress, pain, dehydration, infection, or cardiac disorders. --- 🫁 Oxygen Saturation (SpO₂) SpO₂ measures the percentage of oxygen carried by hemoglobin in the blood using a pulse oximeter. Normal: 95–100% Concerning: < 90% Why is it important? Low oxygen saturation may indicate respiratory or cardiovascular problems and requires prompt evaluation. --- 🍬 Random Blood Sugar (RBS) Random Blood Sugar measures the glucose level in the blood at any time of the day. Normal: 70–140 mg/dL High: > 200 mg/dL (with symptoms may suggest diabetes) Low: < 70 mg/dL Why is it important? Monitoring blood glucose helps detect hypoglycemia, hyperglycemia, and diabetes, allowing timely intervention. --- Key Message Vital signs are more than numbers—they provide a quick snapshot of a patient's condition and guide immediate clinical decisions. Accurate measurement and continuous monitoring can save lives. 🌟 Dr. Malak Heyal