22. A 38-year-old female asthma patient presents to the emergency department (ED) with wheezingand dyspnea that has become increasingly worse since this moming. She did not have her inhalerprescription refilled and her nebulizer machine is broken. The ED consulted the pulmonary servicephysician, Dr. A, who came to the ED, documented his findings, and made recommendations After 3.5hours, Dr. A was contacted again as the patient was not improving after several nebulizer treatments, achest Xray, IV fluids, and steroid injections. Dr. A decided to place the patient on observation status atnoon, after perfoming frequent reassessments, several breathing treatrments, and changing to IVsteroids; eight hours had elapsed before the patient returned to nomal baseline. After finaexamination, Dr. A gave the patient instructions, discussed the hospital course, prepared dischargerecords, and gave the patient a samplenasal inhaler and a prescription for a nebulizer machine on thesame day. Which observation code should you append?a. Initial Observation 99218-99220b. Subsequent Observation 99224-99226c.EDServices 99281-99285d.Observation care 99234-99236