Final answer:
For a 64-year-old female experiencing anaphylaxis, the standard dose of epinephrine 1:1000 is generally 0.3 to 0.5 mg administered intramuscularly. This must be confirmed with medical command, as individual factors can influence the exact dosage required.
Step-by-step explanation:
An appropriate dose of epinephrine for a 64-year-old female who is not responding to treatments under Protocol 4022 and requires epinephrine 1:1000 for anaphylaxis would typically be 0.3 to 0.5 mg (milligrams) administered intramuscularly. This dosage is based on the standard adult dose for anaphylactic reactions, irrespective of age. However, the exact dose should always be verified with medical command and adjusted based on patient-specific factors including weight, the severity of the reaction, and any underlying health conditions. Epinephrine is the primary treatment for severe allergic reactions, such as anaphylaxis, and it works by raising blood pressure and relaxing bronchial smooth muscle. This treatment can be lifesaving when an allergen, such as shellfish, bee stings, penicillin, or other triggers, causes a severe allergic reaction.