21 results
Cannon A waves during AVNRT on Physical Exam
In AVNRT, the atria and ventricles contract nearly simultaneously
EKG of the same ... to diagnose the case ... excludes other differentials ... ’s called Frog sign ... Cardiology #Neck #Frog #Sign
Intraoperative Cardiac Ischaemia - Guidelines for Crises in Anaesthesia

If the patient is unconscious, signs of cardiac
is unconscious, signs ... is conscious, symptoms ... trolley and 12-lead ECG ... CM5 continuous ECG ... Obtain a 12-lead ECG
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
Equivalents on ECG ... V2 • Wellens sign ... pain • Wellens sign ... #Equivalents #ECG ... #EKG #diagnosis
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
= Biomarkers + ECG ... Equivalents / Don't Miss Signs ... bigger than QRS - deWinter ... #Ischemia #ECG ... #EKG #diagnosis
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
Surgical devices, e.g ... Sepsis (→ 3-14) e.g ... malignant syndrome (e.g ... hyperthermia crisis (late sign ... #Hyperthermia #Differential
Intraoperative Circulatory Embolus - Guidelines for Crises in Anaesthesia
Causes: thrombus, fat, amniotic fluid, air/gas.
Signs: hypotension, tachycardia,
Intraoperative Circulatory ... Signs: hypotension ... decreased ETCO2 Symptoms ... Consider thrombolysis e.g ... Anesthesiology #Anesthesia
Cardiac Tamponade - Guidelines for Crises in Anaesthesia
Caused by an accumulation of blood, pus, effusion fluid
, e.g. central line ... pericardiocentesis kit (eg ... examination and vital signs ... Anesthesiology #Anesthesia ... #Intraoperative
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... STE: "Pardee's sign ... (Eiffel Tower sign ... diagnosis #cardiology #ecg ... #ekg #electrocardiogram
Intraoperative Anaphylaxis - Guidelines for Crises in Anaesthesia
• Unexplained hypotension
• Unexplained bronchospasm (wheeze may be absent
Intraoperative Anaphylaxis ... arrest where other causes ... of more of the signs ... alternate vasopressor (e.g ... #Intraoperative
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
workup for specific symptoms ... for secondary causes ... organ-specific signs ... or symptoms (eg ... Disorders #Algorithm #Differential