Category: P
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Presenting symptom
The symptom that led the patient to seek medical care.
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Pathognomonic symptom
A symptom that is unmistakably associated with a particular disease.
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Periarterial sympathectomy
Removal of the sheath of an artery in which sympathetic nerve fibers are located; used in trophic disturbances.
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Postural sway
Forward and backward movement of the body with motion occurring around the ankle joints when the feet are fixed on the floor. Backward sway is controlled by the anterior tibialis, quadriceps, and abdominal muscles; forward sway is controlled by the gastrocnemius, hamstring, and paraspinal muscles. Patients with lesions of the dorsal and lateral columns of…
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Purse-string suture
A suture entering and exiting around the periphery of a circular opening. Drawing the suture taut closes the opening.
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Petrosphenoidal suture
A suture between the petrous portion of the temporal bone and the ala magna of the sphenoid bone.
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Petro-occipital suture
A suture between the petrous portion of the temporal bone and the occipital bone.
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Parietomastoid suture
A suture between the parietal bone and the mastoid portion of the temporal bone.
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Palatine transverse suture
A suture between the palatine processes and superior maxilla.
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Postmarketing surveillance
The review of adverse reactions to drugs and medical technologies that occurs after these agents are released for sale and use. Nurses, pharmacists, physicians, and other practioners participate in this process by recording their observations on the adverse effects of drugs to the Food and Drug Administration, which accumulates this survey data and issues warnings…