Malignant Hyperthermia Clinical Grading Scale

Does the patient show generalized muscle rigidity?

Is the patient shivering due to hypothermia?

Is the patient just emerging from inhalational general anesthesia? (Y or N)

Does the patient show masseter muscle spasm shortly after succinylcholine administration?

Serum CK after anesthesia which included succinylcholine

Serum CK after anesthesia which did not include succinylcholine

Is the urine cola colored in the perioperative period?

Urine myoglobin

Serum myoglobin

Serum potassium

Is the patient in renal failure?

PetCO2

PaCO2

Is the patient on controlled ventilation?

Is the patient breathing spontaneously?

Is the level of hypercarbia inappropriate in your opinion?

Does the patient show an inappropriate tachypnea?

Is the rise in the patient's body temperature inappropriately rapid?

Body temperature

Is the elevated temperature inappropriate?

Is the patient showing inappropriate sinus tachycardia?

Does the patient have ventricular tachycardia or ventricular fibrillation?

Arterial base excess

Arterial pH

Does IV dantrolene result in rapid reversal of signs of metabolic or respiratory acidosis?

Does a first degree relative of the patient have a history of malignant hyperthermia?

Does a relative of the patient who is not of first degree have a history of malignant hyperthermia?

Is the patient's resting serum creatine kinase elevated?

Has the patient shown signs or symptoms of malignant hyperthermia, other than CK elevation, following previous episodes of anesthesia?