MedDxDaily

Welcome to MedDxDaily 🩺 Here you’ll get: • Daily clinical cases • Rapid diagnosis tricks • High-yield concepts for MBBS & NEXT Train your brain to think like a doctor. Follow & turn on notifications 🔔

The correct answer is A) Amlodipine. Why? Amlodipine is a dihydropyridine calcium channel blocker (CCB). It causes preferential arteriolar (precapillary) dilation This increases hydrostatic pressure in capillaries Leads to fluid leakage into interstitial space → ankle (pedal) edema Why others are incorrect: Lisinopril → may cause cough, hyperkalemia, angioedema (not ankle edema) Metoprolol → bradycardia, fatigue Losartan → hyperkalemia, hypotension

A patient with hypertension is started on a drug causing ankle edema. Which drug? A) Amlodipine B) Lisinopril C) Metoprolol D) Losartan

Cefotaxime is commonly preferred in neonates mainly because it is safer for bilirubin metabolism and the CNS. Key reasons: 1. ✔️ Does NOT displace bilirubin Neonates (especially preterm) have immature liver conjugation → risk of Neonatal jaundice Some drugs displace bilirubin from albumin → ↑ free bilirubin → Kernicterus Cefotaxime has minimal bilirubin displacement → safer 2. ✔️ Good CSF penetration Effective for neonatal sepsis and meningitis Crosses blood-brain barrier well → useful in CNS infections 3. ✔️ Broad-spectrum coverage Covers common neonatal pathogens: Gram-negative (e.g., E. coli) Some Gram-positive organisms 4. ✔️ Favorable safety profile Lower risk of complications compared to alternatives like ceftriaxone

Why is Cefotaxime commonly preferred as an antibiotic in neonates.? 🤔

@DrsansariOrd Vitamin c

Which vitamin is also known as Ascorbic Acid❓ A) Vitamin A B) Vitamin B12 C) Vitamin C D) Vitamin D

The correct answer is B) Dengue. The key clinical features given are: High fever (103°F) Severe myalgia Retro-orbital headache Rash Thrombocytopenia These are classic for Dengue. Why not others? ❌ A) Malaria Fever with chills/rigors No rash or retro-orbital pain Thrombocytopenia may occur, but rash is uncommon ❌ C) Typhoid fever Step-ladder fever, abdominal symptoms Rose spots (faint rash), not severe myalgia or retro-orbital pain ❌ D) Leptospirosis Fever + myalgia (calf tenderness), conjunctival suffusion No typical rash + retro-orbital pain combination

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The correct answer is D) Cancer. Explanation: A non-communicable disease is one that does not spread from person to person. ❌ Communicable diseases: A) Tuberculosis → spread via airborne droplets B) Malaria → transmitted by mosquito vector C) Dengue → transmitted by Aedes mosquito ✅ Non-communicable disease: D) Cancer → not infectious, arises due to genetic and environmental factors

Which of the following is a non communicable disease ? A- Tuberculosis B- Malaria C- Dengue D- Cancer

The correct answer is (d) Prions. Explanation: Formaldehyde is a high-level disinfectant/sterilant that works by alkylating proteins and nucleic acids. It is effective against: (a) Vegetative bacteria ✅ (b) Bacterial spores ✅ (c) Viruses ✅ ❌ Not effective against: (d) Prions Prions lack nucleic acids and have highly resistant protein structure Require more stringent methods (e.g., autoclaving + NaOH)

Q. Formaldehyde is not active against: (a) Vegetative bacteria (b) Bacterial spores (c) Viruses (d) Prions #micromonday

The correct answer is C) Amoxicillin. A pregnant woman with a UTI requires an antibiotic that is safe for the fetus. ❌ A) Tetracycline Contraindicated in pregnancy Causes teeth discoloration and inhibits bone growth in the fetus ❌ B) Ciprofloxacin Fluoroquinolone Avoided due to risk of fetal cartilage damage ✅ C) Amoxicillin Safe in pregnancy (Category B) Commonly used for UTIs in pregnant women No teratogenic effects ❌ D) Chloramphenicol Risk of gray baby syndrome Generally avoided in pregnancy

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The correct answer is: C) Pulmonary embolism Why? The triad of: Sudden dyspnea Chest pain Tachycardia is classic for acute pulmonary embolism (PE). Quick reasoning: Pulmonary embolism → sudden onset, pleuritic chest pain, tachycardia ✔️ MI → chest pain prominent, dyspnea possible but not typically sudden with this triad Pneumonia → fever, cough, gradual onset ❌ Asthma → wheezing, no chest pain typically ❌

@payoo241 Thankyou

@MedDxDaily Very Correct Dr

Q// A patient develops wound dehiscence 5 days after abdominal surgery. Which vitamin deficiency is most likely contributing? A. Vitamin A B. Vitamin B1 C. Vitamin C D. Vitamin D E. Vitamin K

✅ Correct answer: A) Burn 🔍 Explanation: 🟢 Hypovolemic shock Occurs due to loss of circulating blood volume (fluid or blood loss) Burns → massive plasma/fluid loss through damaged skin ➡️ leads to ↓ intravascular volume → hypovolemic shock ❌ Why others are incorrect: B) Bad news → Causes vasovagal syncope, not shock C) Bacterial toxins → Cause Septic shock (vasodilation, not volume loss) D) Allergic reaction → Causes Anaphylactic shock (vasodilation + permeability)

Hypovolaemic shock is caused by A- Burn B- Bad news C- Bacterial toxins D- Allergic reaction

Q// A precancerous lesion of the mouth is? A. Leukoplakia B. Gingivitis C. Dental caries D. Tonsillitis E. Glossitis

✅ Correct answer: A) Leukoplakia 🔍 Explanation: 🟢 Leukoplakia Defined as a white patch in the oral cavity that cannot be scraped off Strongly associated with: Tobacco use 🚬 Alcohol Considered a premalignant lesion → may progress to oral squamous cell carcinoma ❌ Why others are incorrect: B) Gingivitis → Inflammatory condition, not premalignant C) Dental caries → Tooth decay, no malignant potential D) Tonsillitis → Infection, not precancerous E) Glossitis → Tongue inflammation (e.g., B12 deficiency), not premalignant

Ig you are trying to trick us as all the options are possible 🔍 Step-by-step genetics: ABO blood groups depend on alleles: A (IA), B (IB) → codominant O (i) → recessive Possible parental genotypes: Man (Group B): IBIB or IBi Woman (Group A): IAIA or IAi 🧬 If both are heterozygous (IBi × IAi): Possible offspring: IAIB → AB IAi → A IBi → B ii → O ➡️ All 4 blood groups (A, B, AB, O) are possible

A man with blood group B marries a woman with blood group A. Their child can never have which blood group? A) A B) B C) AB D) O

✅ Correct answer: C) Enalapril 🔍 Why this is first-line in HTN with diabetes: Patients with diabetes are at high risk of diabetic nephropathy, so we prefer drugs that: Lower BP ✔️ Provide renal protection ✔️ ACE inhibitors (like Enalapril): ↓ Intraglomerular pressure ↓ Proteinuria Slow progression of kidney disease Improve cardiovascular outcomes ❌ Why others are not first-line: A) Atenolol → Not preferred: may mask hypoglycemia + less renal benefit B) Amlodipine → Good alternative/add-on, but no renal protection like ACEi D) Furosemide → Used in edema/CKD, not first-line for uncomplicated HTN

Which drug is first-line for #hypertension with diabetes? A Atenolol B Amlodipine C Enalapril D Furosemide

@DrMedica_13 ✅ Most likely diagnosis: B) Sjögren’s syndrome 🔍 Step-by-step reasoning: 1. Key clinical features: Dry eyes (xerophthalmia) Dry mouth (xerostomia) ➡️ Classic sicca symptoms 2. Serology: Positive anti-Ro/SSA antibodies ➡️ Strongly associated with Sjögren’s syndrome

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This is a blood clot (thrombus)—more specifically, a visualization of the fibrin mesh trapping blood cells. This represents the process of coagulation cascade: Vessel injury → platelet activation Conversion of fibrinogen → fibrin Fibrin forms a meshwork RBCs and platelets get trapped → stable clot How to recognize it: The white thread-like network → this is fibrin, formed from fibrinogen during coagulation The round red/orange discs → these are red blood cells (RBCs) Occasional lighter cells → likely platelets or leukocytes

Can you guess what this is?

The correct answer is: B. Amlodipine Explanation: Amlodipine It is a dihydropyridine calcium channel blocker (CCB). Causes peripheral vasodilation, especially of arterioles. This leads to increased capillary hydrostatic pressure → fluid extravasation → ankle (pedal) edema. Edema is dose-dependent and more common in long-term use. Why not others? Atenolol → Does NOT cause edema (may even reduce it). Enalapril → More associated with dry cough, hyperkalemia, not edema. Losartan → Similar to ACE inhibitors, no pedal edema.

Which antihypertensive causes ankle edema? A Atenolol B Amlodipine C Enalapril D Losartan

@DrMedica_13 Adrenaline If not available, hydrocortisone can be used to delay the effects till adrenaline is available.

Answer? 🧣☘️🧣

The correct answer is: 👉 C. Crusted scabies 🔍 Why this is correct: Key clues in the question: Elderly patient → often immunocompromised or debilitated Diffuse hyperkeratotic, crusted lesions → thick scales and crusts Hands involvement with fissuring → classic distribution Minimal pruritus → very important clue 👉 In typical Scabies, itching is intense. 👉 In crusted (Norwegian) scabies, itching is minimal or absent due to reduced immune response.

Q. An elderly patient presents with diffuse hyperkeratotic, crusted lesions over the hands with fissuring, and minimal pruritus. What is the diagnosis ? A. Psoriasis. B. Contact dermatitis. C. Crusted/Norwegian scabies. D. Tinea manuum.