Critical is a free USMLE Step 2 CK-style branching case simulator: 299 cases, no signup, no ads. You make the decisions and see the consequences. No physician has formally reviewed the full bank yet, so verify anything important. xairu23.github.io/Critical/ #USMLE

High anion gap metabolic acidosis mnemonic GOLDMARK — memorize causes. #USMLE #acidbase #toxicology

Anticholinergic toxicity causes dry skin, hyperthermia, flushing, mydriasis, and urinary retention from muscarinic blockade. Recognize classic signs for exams. #USMLE #Anticholinergic #Pharmacology

Follow the pathway from medical school through USMLE, ECFMG Certification, clinical experience, ERAS, interviews and the NRMP Match.

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Methemoglobinemia: Fe2+->Fe3+ prevents O2 binding. Pulse ox ~85% despite high PaO2. Confirm with co-oximetry; treat symptomatic patients with IV methylene blue. #USMLE #methemoglobinemia #toxicology

Trimethoprim blocks ENaC like amiloride, causing hyperkalemia risk. It also inhibits tubular creatinine secretion, raising serum creatinine without true GFR loss. #USMLE #pharmacology #nephrology

LAMPS: drugs that cause lactic acidosis—Linezolid; Adrenergic agonists (albuterol, epinephrine); Metformin (accumulation/overdose); Propofol/propylene glycol; Stavudine/NRTIs. #USMLE #pharm #metabolism

Match common overdose antidotes: acetaminophen→N-acetylcysteine, opioids→naloxone, methanol/ethylene glycol→fomepizole, TCA with wide QRS→sodium bicarbonate. #USMLE #toxicology #antidotes

La mia abilitazione alla pratica come medico negli USA del 2003 (ECFMG/USMLE): l'attestato di cui vado più fiero! Lo Step 1: l'esame più difficile. Il CSA a Filadelfia con gli attori-pazienti: l'esame più memorabile. #ECFMG #USMLE

TCA overdose: anticholinergic signs, wide QRS from sodium-channel blockade, and terminal R in aVR—classic amitriptyline EKG. #USMLE #TCA #EKG

Bizarre QRS after missed dialysis signals hyperkalemia. Give calcium gluconate to stabilize, then insulin+dextrose to shift K+, and arrange dialysis for definitive removal. #USMLE #Hyperkalemia #EKG

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🎙️ Tomorrow on Voice of Texila, Ep. 4

From nurse & advanced practice clinician to 3rd-year med student, Paul Iweriebor on admissions, USMLE Step 1 prep & clinicals in Guyana.

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HIT type II: platelet drop day 5–10 from IgG antibodies to PF4 causing thrombosis; stop all heparin and start Argatroban, fondaparinux, bivalirudin, or DOACs. #USMLE #HIT #anticoagulation

EKG-echo mismatch: thick LV but low-voltage QRS suggests cardiac amyloidosis; check for proteinuria and systemic signs. #USMLE #cardiology #amyloidosis

Mavacamten is a cardiac myosin inhibitor for hypertrophic obstructive cardiomyopathy. Also review new cardiometabolic drugs named in this clip. #USMLE #Cardiology #Pharmacology

ST depressions in V1–V3 can be a mirror of posterior MI. Check V7–V9 for ≥0.5mm ST elevation (≥1mm if male <40). Activate cath lab for persistent pain. #USMLE #Cardiology #ECG

🩺 How to Become a Doctor: The Complete Guide

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Empagliflozin (SGLT2 inhibitor) can cause euglycemic DKA. Recognize high anion gap metabolic acidosis and correct hypokalemia before giving insulin. #USMLE #SGLT2 #DKA

Hypotension + JVD in inferior STEMI suggests RV infarct—get right-sided EKG (V4R ≥1mm ST elevation), give IV fluids, avoid nitrates/diuretics, urgent cath. #USMLE #InferiorSTEMI #RVInfarction