14 results
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
Cannon A waves during ... rapid cannon a waves ... are enough to diagnose ... that’s called “clinical ... Hussainch #Cannon #Awaves
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Segment Elevation - Differential ... Diagnosis Framework ... STE: "Pardee's sign ... (Eiffel Tower sign ... • Short QT, high
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
J point • De Winter ... V2 • Wellens sign ... pain • Wellens sign ... Equivalents #ECG #EKG #diagnosis ... #differential #
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
Equivalents / Don't Miss Signs ... bigger than QRS - deWinter ... T waves - starts ... Ischemia #ECG #EKG #diagnosis ... Interpretation #differential
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
39 C this is a clinical ... Excessive insulation, high ... hyperthermia crisis (late sign ... #Hyperthermia #Differential ... #Checklist #Diagnosis
Wellens' Sign: LAD-T Wave Inversion 
Life threatening T wave inversions in precordial leads. Often V2-V3 
Specific
Wave Inversion ... threatening T wave ... High rate in <1 ... angina; but T wave ... Electrocardiogram #Diagnosis
High Central Neuraxial Block - Guidelines for Crises in Anaesthesia
• Can occur with deliberate or accidental
they may be fully aware ... hypnosis as soon as clinical ... that may mimic signs ... Intraoperative #Checklist ... #Diagnosis #Management
Intraoperative Cardiac Ischaemia - Guidelines for Crises in Anaesthesia

If the patient is unconscious, signs of cardiac
is unconscious, signs ... depression • T wave ... Have a high index ... Intraoperative #Checklist ... #Diagnosis #Management
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
of pregnancy, critical ... • Low TSH, high ... Hyperthyroidism → Signs ... ophthalmopathy → Graves ... Hyperthyroidism #algorithm #diagnosis
Myasthenic Crisis Checklist - Myasthenia Gravis

Evaluation 
 - Chest X-ray and lung ultrasound (exclude other lung
Myasthenic Crisis Checklist ... Phos), CBC with differential ... Pyridostigmine - New diagnosis ... unless extremely high ... monitoring (vital signs