QTc = QT/sqrt(RR). Prolonged if >480 ms (female) or >470 ms (male). T wave >50% RR suggests prolonged QT. Also note P wave signs of RAE and LAE. #USMLE #ECG #Electrolytes

Multifocal atrial tachycardia: irregularly irregular tachycardia with ≥3 P-wave morphologies and rate >100 bpm; classically seen with COPD exacerbations. #USMLE #arrhythmia #COPD

Rate <100 with wide QRS in a post-MI patient suggests accelerated idioventricular rhythm (slow VT). Look for capture beats and positive aVR to confirm ventricular origin. #USMLE #Cardiology #ECG

Rate <100 with wide QRS in a post-MI patient suggests accelerated idioventricular rhythm (slow VT). Look for capture beats and positive aVR to confirm ventricular origin. #USMLE #Cardiology #ECG

Estimate heart rate on EKG using 300 ÷ large boxes. Memorize: 300,150,100,75,60,50,43,38,33,30 #USMLE #ECG #Cardiology

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.

Read: tau.edu.gy/blog/caribbe...

Apply: tau.edu.gy/tau-guyana-b...

#USMLE #USResidency

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

NEW: A Comparative Analysis of Large Language Model Performance on #USMLE Step 1-Style Allergy/Immunology Questions: Evaluating Correctness and Consistency www.thieme-connect.com/products/ejo...

#MedSky #MedEd #LLM #GenAI

🎙️ 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.

Premieres on YouTube, Spotify & Apple Podcasts🔔

#Texila #VoiceofTexila #Podcast #USMLE #MedStudent

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