Sialography

Sialography is a topic covered in the Davis's Lab & Diagnostic Tests.

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Synonym/Acronym:
Ptyalogram, radiosialography, salivary gland studies.

Rationale
To assess parotid, submaxillary, sublingual, and submandibular ducts for structure, tumors, and inflammation related to pain, swelling, and tenderness.

Patient Preparation
There are no activity restrictions unless by medical direction. Computed tomography (CT) sialography studies performed without contrast usually do not require the patient to fast before the procedure. If iodinated contrast medium is scheduled to be used, instruct the patient to fast and restrict fluids, as ordered, prior to the procedure. Fasting may be ordered as a precaution against aspiration related to possible nausea and vomiting. The American Society of Anesthesiologists has fasting guidelines for risk levels according to patient status. More information can be located at www.asahq.org.

Note: If iodinated contrast medium is scheduled to be used in patients receiving metformin or drugs containing metformin for type 2 diabetes, the drug may be discontinued on the day of the test and continue to be withheld for 48 hr after the test.

Normal Findings

  • Normal salivary ducts with no indication of gland abnormalities.

Critical Findings and Potential Interventions
N/A

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