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par Elizabeth Hamrick Il y a 1 année

101

Malignant Hyperthermia

Malignant hyperthermia is a severe reaction triggered by exposure to certain anesthetic agents, leading to a rapid increase in myoplasmic calcium and subsequent muscle activation. This condition predominantly affects skeletal muscle tissue and can be life-threatening.

Malignant Hyperthermia

Malignant Hyperthermia

Risk Factors

Positive Genetic Tests
History of event thought to be Malignant Hyperthermia
Family History of Malignant Hyperthermia

Pathology

exposure to volatile inhaled anesthetic agents
Primarily involves skelatal muscle tissue
uncontrolled rise of mycoplastmic calcium which activates a biochemical process related to muscle activation

Nursing Interventions

Insert indwelling urinary catheter to monitor output & for myoglobinuria
Monitor cardiac rhythm and treat dysrhythmias
Apply cooling blanket and ice
Administer 100% O2 & gather specimens for ABG & blood to monitor for hypokalemia
Assist w/ termination of surgery & administer IV Dalantrene muscle relaxant. Infuse iced IV 0.9% sodium chloride

Medications

Antipyretics
IV Dantrolene

Signs/Symptoms

Increased muscle contractions
Tachycardia, Hypertension
Increased Heart rate
increasing temperature sometimes as high as 107 F
Hypertensive crisis
dysrhythmias, muscle rigidity
Increased Carbon Dioxide, decreased oxygen saturation level
Sudden elevated temperature