Useful Office Equipment for Better Care of Your Patients
Wednesday, January 30th, 2008Pulse oximetry has become the standard non-invasive method of determining arterial oxygen saturation because of its simple functionality and high clinical value. Pulse oximetry has been on the increase in primary care settings as well. Small, inexpensive pulse oximeter units have changed the way primary care physicians evaluate, manage, and treat patients. It provides the physician with a quantitative assessment and measurement with which to manage patients’ chronic and acute illnesses.
Pulse oximetry procedures are billed under separate current procedural terminology (CPT) codes, and can be used in conjunction with other office and outpatient evaluation and management codes. Office staff can be easily trained to perform pulse oximetry, thereby increasing physician patient time, and office and physician revenue.
Pulse oximetry is a noninvasive measurement of arterial oxygen saturation. It measures oxygen saturation within the patient’s hemoglobin using both red and infrared light. The amplitudes of the light signals are measured and mathematically calculated to give oxygen saturation as a percentage. The medical device industry has created an apparatus standard for pulse oximetry. Pulse oximetry accuracy specifications are +/-2 digits. Although pulse oximetry readings may differ from manufacturer to manufacturer based on their proprietary algorithm, all must meet the industry’s device specifications. This value may be affected by other molecules that bind to the patient’s hemoglobin, like carbon monoxide, which produces a higher measurement of saturated hemoglobin. These high levels produce an inaccurate oxygen saturation reading on the pulse oximeter. Values obtained by pulse oximetry that do not correlate with the patient’s physical findings must be confirmed by arterial blood gas in a laboratory.
This type of medical diagnostic equipment when used on a patient with Chronic Obstructed Pulmonary Disease (COPD) may be of benefit with each primary care office visit. Decreased oxygen saturation readings from the patient’s normal baseline can be an early identifier of infection, medication non-compliance, and disease exacerbation. In conjunction with the patient assessment, the oxygen saturation obtained by pulse oximetry may help avoid hospital admissions.
Primary care physicians treat patients with pneumonia in their office on a routine basis. The pulse oximeter assists the physician in determining the severity of the disease and provides documentation to support hospital admission. Patients with aggressive pneumonias may present with decreased oxygen saturation levels and shortness of breath. Pulse oximetry helps quantify the need for hospital/acute care admission and supports the clinical findings of the physician.
The pulse oximeter can be used by the primary care physician as a screening tool for possible sleep disorders when used in conjunction with a patient history. Some portable pulse oximeters have the ability to record and store readings over a 24-hour period. Patients can be sent home with battery powered oximeters for an overnight recording of oxygen saturation. The patient places the oximetry probe on their finger and turns on the oximeter for an overnight recording at their normal bedtime.
Pulse oximetry can be useful in treating infant and pediatric patients in the primary care setting. Infants with Respiratory Syncytial Virus (RSV) and other respiratory problems can present with increased respiratory rates, retractions and low oxygen saturation levels. Pulse oximetry can be a useful assessment tool in evaluating the severity of the illness, and the need for acute care intervention.
Reimbursement for pulse oximetry in the primary care setting can be billed in addition to normal evaluation and management CPT codes. There are three CPT codes that can be used in the primary care setting for pulse oximetry. All three procedural codes can be billed in conjunction with Evaluation and Management (E&M) codes.
The pulse oximeter can be valuable in a physician’s office for any primary care physician. The clinical information that the pulse oximeter provides can be beneficial for the evaluation and management of different diseases. Pulse oximetry can help justify acute care intervention and placement, and help determine severity of a disease process. At a relatively low cost to the nation, it can be used as a screening tool for sleep disorders. A pulse oximeter is a dependable piece of equipment that needs little maintenance, and can become an indispensable tool for the primary care physician.
Excerpt from article in Physician Office Resource, Issue #3.