🦠 Viral Upper Respiratory Tract Infection (Viral URTI) Definition:A Viral Upper Respiratory Tract Infection (URTI) is a common infection that affects the nose, throat, and upper airways (the respiratory tract above the lungs).It is usually caused by viruses and often referred to as the common cold.⸻🔹 Common Causative Viruses • Rhinovirus (most common) • Adenovirus • Coronavirus • Parainfluenza virus • Respiratory syncytial virus (RSV) • Influenza virus⸻🔹 Mode of Transmission • Airborne droplets from coughing or sneezing • Direct contact with infected person • Touching contaminated surfaces and then touching the nose, mouth, or eyes⸻🔹 Affected Parts of the Body • Nose (rhinitis) • Throat (pharyngitis) • Sinuses (sinusitis) • Ears (otitis media – in some cases) • Larynx (laryngitis)⸻🔹 Common Symptoms • Sore throat • Runny or stuffy nose • Sneezing • Cough • Mild fever • Headache • Fatigue • Hoarse voice • Mild body acheSymptoms usually appear 1–3 days after exposure and last 5–10 days.⸻🔹 DiagnosisUsually clinical — based on history and symptoms.Lab tests are not needed unless complications or severe infection are suspected.⸻🔹 TreatmentThere is no specific antiviral for most viral URTIs.Treatment is symptomatic and supportive: • Rest and fluids • Warm saline gargles • Steam inhalation • Paracetamol for fever or body ache • Decongestants (if prescribed) • Avoid unnecessary antibiotics (since it’s viral)⸻🔹 Prevention • Frequent hand washing • Cover mouth and nose while sneezing/coughing • Avoid close contact with sick people • Maintain good hydration and nutrition • Annual flu vaccination (for influenza prevention)⸻🔹 Complications (if untreated or severe) • Sinusitis • Ear infection (otitis media) • Bronchitis • Pneumonia (rare in viral URTI, more in secondary bacterial infection)

Dyslipidemia – DescriptionDefinition:Dyslipidemia is a disorder of lipid (fat) metabolism in which there are abnormal levels of lipids in the blood — such as cholesterol and triglycerides.It is a major risk factor for cardiovascular diseases like heart attack and stroke.🔹 Normal Blood Lipid Components • Total cholesterol (TC) • Low-density lipoprotein (LDL-C) – “Bad” cholesterol • High-density lipoprotein (HDL-C) – “Good” cholesterol • Triglycerides (TG)🔹 Types of Dyslipidemia 1. Primary (Genetic) Dyslipidemia • Caused by inherited gene mutations affecting lipid metabolism. • Examples: • Familial hypercholesterolemia • Familial combined hyperlipidemia 2. Secondary (Acquired) Dyslipidemia • Resulting from other health conditions or lifestyle factors. • Causes include: • Obesity • Diabetes mellitus • Hypothyroidism • Chronic kidney or liver disease • Alcohol excess • High-fat diet • Certain drugs (e.g., steroids, beta-blockers)🔹 Complications • Atherosclerosis (hardening/narrowing of arteries) • Coronary artery disease (heart attack, angina) • Stroke • Peripheral vascular disease🔹 Diagnosis • Lipid profile test (fasting or non-fasting):

The thyroid gland is a small, butterfly-shaped gland located in the front of the neck. It produces hormones — mainly thyroxine (T4) and triiodothyronine (T3) — which control the body’s metabolism, energy use, growth, and development.When the thyroid does not function properly, it leads to a thyroid disorder. These disorders cause either too much or too little thyroid hormone in the body.🔹 Types of Thyroid Disorders 1. Hypothyroidism (Underactive Thyroid) • The thyroid gland doesn’t produce enough hormones. • Causes: Hashimoto’s thyroiditis (autoimmune), iodine deficiency, certain medications, or thyroid surgery. • Symptoms: • Fatigue, weakness • Weight gain • Cold intolerance • Dry skin, hair loss • Constipation • Slow heart rate, depression⸻ 2. Hyperthyroidism (Overactive Thyroid) • The thyroid gland produces too much hormone. • Causes: Graves’ disease (autoimmune), thyroid nodules, thyroiditis, or excess iodine. • Symptoms: • Weight loss despite normal appetite • Heat intolerance • Nervousness, anxiety, irritability • Tremors, palpitations • Increased sweating • Difficulty sleeping⸻ 3. Goiter • An enlargement of the thyroid gland, which may occur in both hypo- or hyperthyroidism. • Causes: Iodine deficiency, autoimmune conditions (Graves’ or Hashimoto’s disease).⸻ 4. Thyroid Nodules • Lumps or growths in the thyroid gland. • Usually benign, but sometimes can be cancerous. • Symptoms: Often asymptomatic; may cause swelling or trouble swallowing if large.⸻ 5. Thyroid Cancer • Malignant growth in the thyroid tissue. • Symptoms: Lump in the neck, hoarseness, difficulty swallowing, or swollen lymph nodes.