When you graph, don't try to plot loads of points. Note that the cosine is at y = 1 when x = 0 and 2Ï; at y = 0 for x = Ï/2 and 3Ï/2, and at y = â1 for x = Ï. Plot these five interesting points, and then fill in the curve.
Transesophageal echocardiogram. A transesophageal echocardiogram, or TEE (TOE in the United Kingdom, reflecting the spelling transoesophageal), is an alternative way to perform an echocardiogram. A specialized probe containing an ultrasound transducer at its tip is passed into the patient's esophagus.
The patientâs medical record should document the necessity for TEE, and TEE should only be performed if it is expected to alter the care of the patient. Intraoperative TEE for monitoring purposes (CPT code 93318) is a non-covered service by the majority of Medicare Carriers. A few carriers provide coverage of this service for a small group of high-risk patients. Providers are advised to check their individual carrierâs website.