Category: P

  • Pearl

    A small, tough mass in the sputum in asthma.  

  • Peak and trough

    The highest and lowest concentrations of a drug in plasma. Measurement of peak and trough drug levels are used to determine whether an intravenously administered medication is consistently within therapeutic range. The trough is drawn just before a drug is scheduled to be given; the peak is drawn after the drug is administered (30 to…

  • Peabody developmental motor scales

    A standardized performance test of gross and fine motor development for infants and children. The PDMS is suitable for newborns, infants, and children up to 6 years of age. Subtests include reflexes, stationary, locomotion, object manipulation, grasping, and visual-motor manipulation.  

  • Pay for performance

    The use of specific indicators of health care efficiency or quality to increase or decrease the funds paid to health care providers for the services they render.  

  • Pavlik harness

    A device used to stabilize the hip in neonates with congenital hip dislocation.  

  • Pautrier microabscess

    A local collection of malignant lymphocytes. It is found on microscopic examination of biopsies taken from patients with cutaneous T cell lymphoma.  

  • Pause

    An interruption; a temporary cessation of activity.  

  • Pauciarticular

    A classification of juvenile rheumatoid arthritis that indicates that four or fewer joints are affected at the time of onset of the disease.  

  • Pattern recognition receptor

    Any receptor on an antigen-presenting cell of the immune system that recognizes molecular sequences found on disease-causing organisms but not host cells. Pattern recognition receptors detect the presence of pathogen-associated chemicals such as lipopolysaccharides, mannans, and teichoic acids.  

  • Patrick’s test

    A test for arthritis of the hip. The thigh and knee of the supine patient are flexed, and the external malleolus of the ankle is placed over the patella of the opposite leg. The test result is positive if depression of the knee produces pain. This test is also called the fabere test. “FABERE” is…