24 results
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
Excessive IV Mg infusion ... (e.g. eclampsia ... Hypermagnesemia #Differential ... High #Magnesium #Table ... #Causes #Management
Hyperkalemia shortens repolarization; changes in the T wave provide the earliest clues to hyperpotassemia.
 - At
repolarization causes ... prolonged PR and QT ... sine wave (QRS-T fusion ... #ECG #Changes # ... Progression #Table
Peri-operative Hyperthermia - Guidelines for Crises in Anaesthesia
If prolonged or ≥ 39 C this is a
maintained fever CAUSES ... Sepsis (→ 3-14) e.g ... #Hyperthermia #Differential ... #Causes #Anesthesiology ... Diagnosis #Management #Workup
Hypotension - Guidelines for Crises in Anaesthesia

Hypotension is commonly due to unnecessarily deep anaesthesia, the autonomic
rate, rhythm, perfusion ... and positioning (e.g ... #Hypotension #Differential ... #Anesthesiology ... Diagnosis #Management #Workup
Cardiac Tamponade - Guidelines for Crises in Anaesthesia
Caused by an accumulation of blood, pus, effusion fluid
of blood, pus, effusion ... , e.g. central line ... pericardiocentesis kit (eg ... Cardiac #Tamponade #Anesthesiology ... Diagnosis #Management #Workup
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Hypertension - Differential ... ) or IV saline infusion ... #Hypertension #Differential ... #Screening #Workup ... #table
Increased Airway Pressure - Guidelines for Crises in Anaesthesia

Using these steps from start to end should
rate, rhythm, perfusion ... blood gas, 12-lead ECG ... Airway #Pressure #Differential ... #Anesthesiology ... Diagnosis #Management #Workup
Intraoperative Anaphylaxis - Guidelines for Crises in Anaesthesia
• Unexplained hypotension
• Unexplained bronchospasm (wheeze may be absent
as a possible cause ... alternate vasopressor (e.g ... as patient is stable ... #Anaphylaxis #Anesthesiology ... Diagnosis #Management #Workup
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
Hypertension - Workup ... and Differential ... with previously stable ... #Hypertension #Workup ... #causes #Differential
Intraoperative Massive Blood Loss - Guidelines for Crises in Anaesthesia
Expected or unexpected major haemorrhage

❶ Call for
Guidelines for Crises ... . ❼ Use rapid infusion ... , coagulation, etc ... BloodLoss #Hemorrhage #Anesthesiology ... Diagnosis #Management #Workup