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  • Electromyography (EMG) – tetanus test

Electromyography (EMG) – tetanus test

Electromyography (EMG) – the tetanus test is the only method for confirming or excluding tetanus.

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  • Description of the test
  • Preparation for the test
  • Important information
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Description of the test

Electromyography (EMG) – tetanus test

Tetanus is a disease of the muscular system caused by calcium and magnesium deficiencies in the bodye. The disease occurs in two forms with different symptoms:

  • the marked form, which is manifested through characteristic seizures. They begin with a tingling sensation in the fingers and mouth area. Next, all the facial muscles, as well as the muscles of the arms and legs, start to manifest strong and hard-to-control spasms. In extreme cases, the spasms affect the laryngeal muscles which may prevent the patient from breathing and cause a life-threatening situation. Moreover, the seizures are accompanied by psychological symptoms, such as anxiety, restlessness and strong agitation.
  • the latent form, which has a very wide range of diverse symptoms. Instead of seizures, it generates – amongst others – chronic states of muscular pains and spasms, fatigue, anxiety, difficulties in concentration, occasional panic attacks, stammering, shaky hands, and circulatory disorders.

What does the examination look like?

The tetanus test belongs to a group of electromyographic examinations which analyse the electrical potentials in muscles and nerves. This examination involves, above all, identification of the electrostatic potential of muscles typical of tetanus or exclusion of this disea.

The examination is carried out with the patient in a horizontal position. During the examination, the patient wears an inflated cuff for 10 minutes to have his/her blood pressure measured. It may be worn either on the left or on the right upper limb (or, more precisely, around the biceps muscle). During this 10-minute compression of the upper arm (the arm becomes numb), there are also 2 minutes of deep breathing (similar to hyperventilation). After 10 minutes of compression, a small thin needle is inserted into the patient’s 1st intercostal dorsal muscle (between the index finger and the thumb) in order to register the muscle’s activity during the examination.

The whole examination lasts approximately 15 minutes.

Once the examination is over, the patient may resume all the daily activities.

Since the electrode performs the measurement on an ongoing basis, it is not necessary to wait for the results. The physician reads out and interprets the measurements right away, confirming or excluding the presence of tetanus.

The EMG examination requires no medical referral.

Preparation for the test
Important information
Documents