Mnemonic for Inhalation Anesthetics

  


Inhalation Anesthetics Mnemonic 

SHINE:

Sevoflurane
Halothane
Isoflurane
Nitrous oxide
Enflurane

Another inhaled anesthesia mnemonic

All end with ANE except NO2.

INMESH

Isoflurane
Nitrous oxide
Methoxyflurane
Enflurane
Sevoflurane
Halothane 


Here are some key board exam points to review for inhalation anesthetics:

Common Inhalation Anesthetics:

  • Sevoflurane: Preferred for inhalation induction due to its rapid onset and low airway irritation.
  • Isoflurane: Known for its stability and minimal metabolism.
  • Desflurane: Requires a special vaporizer due to its high vapor pressure.
  • Nitrous Oxide (N2O): Often used in combination with other agents for its analgesic properties.

Pharmacokinetics:

  • Solubility: Measured by the blood/gas partition coefficient. Lower solubility (e.g., Desflurane) leads to faster induction and recovery.
  • MAC (Minimum Alveolar Concentration): Indicates the potency of the anesthetic. Lower MAC values mean higher potency.

Physiological Effects:

  • Cardiovascular: Most inhalation anesthetics cause dose-dependent decreases in blood pressure.
  • Respiratory: Can cause respiratory depression and reduced tidal volume.
  • CNS: Decrease cerebral metabolic rate and can increase cerebral blood flow.

Toxicity and Side Effects:

  • Hepatotoxicity: Halothane is known for its potential to cause liver damage.
  • Nephrotoxicity: Sevoflurane can produce Compound A, which is nephrotoxic in high concentrations.
  • Malignant Hyperthermia: A rare but serious reaction, particularly with agents like Halothane and Isoflurane.

Special Considerations:

  • Pediatric Use: Sevoflurane is often preferred due to its rapid onset and minimal airway irritation.
  • Obesity: Increased fat solubility can prolong recovery times.

For more anesthesiology mnemonics check this mnemonic book.

          This post covers the points you need to know for your board exams as well as for teaching residents on the daily rounds. Medical professionals can't use the information here to treat their patients nor people can use the information her to treat themselves. If you are having any medical issues, contact your local emergency services or your primary care provider. Please refer to your doctor for medical advice.