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Electrodiagnostic Laboratory

         Under the direction of Dr. Pecha, The Rehabilitation Group Electrodiagnostic Lab achieved accreditation with Exemplary Status in 2012—the first in San Antonio to achieve this distinction.

        In June 2022, the lab was re-accredited at "Exemplary Status" by the American Academy of Neuromuscular & Electrodiagnostic Medicine (AANEM)—the highest level of accreditation.


       Based on these certifications, patients and referring physicians can be assured of the highest quality of care and expertise.



Electromyography (EMG)

         Electromyography (EMG) is a diagnostic procedure that is used to assess the health of muscles and nerves. It is performed in an examination room with a machine designed to study nerves and muscles.  A combination of two studies is performed: a nerve conduction study which is used to study nerve function such as strength and speed using electrical current, and a needle electrode study which is used to assess the electrical activity of and nerve function to a particular muscle.


        The physician will use both of these studies to determine the health of various nerves and muscles to help accurately diagnose a patient’s condition.  EMG studies are commonly performed when a disorder of either a nerve or muscle is suspected, and each study usually requires 30-45 minutes.  A preliminary discussion of the findings will occur following the study, and a final report will be sent to the referring physician and whomever else the patient requests.

        It is common for a patient to be referred for an EMG study when the person is experiencing pain, tingling, burning, numbness, or weakness to a part of the body.  Since each person is unique, a discussion with the physician occurs prior to each procedure to help direct the study.  At that time a patient may ask questions regarding the procedure.  A preliminary explanation of the findings occurs following each study with time to ask the physician questions.

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