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1. A colloquial term for the loss of deciduous teeth. 2. Casting off of the surface layer of the epidermis. 3. The release of bacteria or viruses from a body surface.

Sheehan syndrome

(shē′ăn) [Harold L. Sheehan, Brit. pathologist, 1900–1988] Hypopituitarism due to an infarct of the pituitary after postpartum shock or hemorrhage. Damage to the anterior pituitary gland causes partial to complete loss of thyroid, adrenocortical, and gonadal function. SYN: postpartum pituitary necrosis.

sheep cell agglutination test

ABBR: SCAT. A test for rheumatoid factor in serum. Sheep erythrocytes sensitized with rabbit antisheep erythrocyte immune globulin will be agglutinated if serum containing the rheumatoid factor is added.

sheep sorrel

Rumex acetosella.


(shēt) 1. A linen or cotton bedcovering. 2. Something that resembles a sheet (such as a strip of connective tissue).

beta s. A protein structure in which parallel layers of linked peptides are folded across each other. This structure is characteristic of amyloid proteins.

draw s. A sheet used to lift and turn immobile patients in their beds. The pad is usually waterproof, with a cotton top surface. It is typically placed under the patient's buttocks and requires two people to move the patient, one on either side of the bed.

face s. A one-page summary of important information about a patient. It includes patient identification, past medical history, medications, allergies, upcoming appointments, insurance status, or other pertinent information.

fee s. Fee schedule.

flow s. Flowchart.

lift s. A sheet folded under a patient over the bottom sheet to assist with moving the patient up in bed.

PATIENT CARE: The use of a lift sheet can reduce friction and shear on the skin, decreasing the likelihood of developing pressure ulcers.

material safety data s. ABBR: MSDS. SEE: safety data s.

run s. A standard document used by first responders and other EMS care providers that documents the patient's chief complaint, history, physical examination, services provided, and clinical course during transportation to a medical center. SYN: prehospital care report.

safety data s. An organized, written summary identifying hazardous materials in the work environment and how to handle, store, contain, counteract, and dispose of them. It was formerly known as the material safety data sheet.

sheet graft

SEE: under graft.

shelf life

1. The length of time a food may be kept in storage and still be considered safe to eat. 2. The length of time ...

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