What is included in the physical exam for dysphagia?

Updated: Mar 20, 2020
  • Author: Nam-Jong Paik, MD, PhD; Chief Editor: Elizabeth A Moberg-Wolff, MD  more...
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Answer

The bedside physical examination should include examination of the neck, mouth, oropharynx, and larynx. A neurologic examination also should be performed.

Look for oral-motor and laryngeal mechanisms; testing of cranial nerves V and VII-XII is essential for determining whether physical evidence of oropharyngeal dysphagia exists. Direct observation of the following is necessary:

  • Lip closure

  • Jaw closure

  • Chewing and mastication

  • Tongue mobility and strength

  • Palatal and laryngeal elevation

  • Salivation

  • Oral sensitivity

Check the patient's level of alertness and cognitive status, because they can impact the safety of swallowing and the ability to learn compensatory measures. Dysphonia and dysarthria are signs of motor dysfunction of the structures involved in oral and pharyngeal swallowing. (The neurologic exam should also include an examination of muscle strength, reflexes, coordination, gait, and functional status.)

Inspect the oral cavity and pharynx for mucosal integrity and dentition, and examine the soft palate for position and symmetry during phonation and at rest.

Evaluate pharyngeal elevation by placing 2 fingers on the larynx and assessing movement during a volitional swallow; this technique helps to identify the presence or absence of key laryngeal protective mechanisms.

The gag reflex is elicited by stroking the pharyngeal mucosa with a tongue depressor. Testing for the gag reflex is helpful, but absence of the reflex does not necessarily indicate that a patient is unable to swallow safely; many people with no gag reflex have normal swallowing abilities, and some patients with dysphagia have a normal gag reflex. Pulling of the palate to one side during testing of the gag reflex indicates weakness of the muscles of the contralateral palate and suggests unilateral bulbar pathology.

Cervical auscultation becomes part of the clinical evaluation of dysphagic patients; assess sound strength and clarity, the timing of apneic episodes, and the speed of swallowing. Also assess respiratory function; if the respiratory force of a cough or clearing of the throat is inadequate, the risk of aspiration is increased. In addition, lungs should be checked for rales/crepitations, wheezes, rhonchi, air entry, and other abnormalities.

The final step in the physical examination is direct observation of the act of swallowing; at a minimum, watch the patient while he/she drinks a few ounces of water. If possible, assess the patient's eating of various food textures. Sialorrhea, delayed swallow initiation, coughing, or a wet or hoarse voice quality may indicate a problem.

After the swallow, observe the patient for 1 minute or more to see if a delayed cough response is present. DePippo and colleagues suggested that a swallow test be conducted with 3 oz of water. In their investigation, the test helped them to identify 80% of patients with stroke who, during a subsequent videofluoroscopic study, were found to be aspirating. [40]


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