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Drugs and diseases reference index

Drugs and diseases reference index
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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «P»:

  1. PEEP PEEP
    PEEP: Abbreviation for positive end-expiratory pressure. A method of ventilation in which airway pressure is maintained above atmospheric pressure at the end of exhalation by means of a mechanical impedance, usually a valve, within the circuit. The purpose of PEEP is to increase the volume of gas ...
  2. Peeping tom Peeping tom
    Peeping tom (Voyeurism): Peeping tom (voyeurism) is a disorder that involves achieving sexual arousal by observing an unsuspecting and non-consenting person who is undressing or unclothed, and/or engaged in sexual activity. This behavior may conclude with masturbation by the voyeur. The voyeur do...
  3. Peer review Peer review
    Peer review: Scrutiny by one's peers (equals). Peer-reviewed articles appearing in medical journals have been scrutinized by members of the biomedical community before publication....
  4. PEF PEF
    PEF: Peak expiratory flow....
  5. PEG PEG
    PEG: Stands for percutaneous endoscopic gastrostomy, a surgical procedure for placing a feeding tube without having to perform an open laparotomy (operation on the abdomen). The aim of PEG is to feed those who cannot swallow. PEG may be done by a surgeon, otolaryngologist (ENT specialist) or g...
  6. PEJ PEJ
    PEJ: Percutaneous endoscopic jejunostomy....
  7. PELD PELD
    PELD: Pediatric End-Stage Liver Disease. A disease severity scoring system for children under 18 years of age, designed to improve the organ allocation in transplantation based on the severity of liver disease rather than time on the waiting list. The PELD score is based on both laboratory data and...
  8. Peliosis hepatis Peliosis hepatis
    Peliosis hepatis: A rare condition in which the liver contains multiple, randomly-distributed blood-filled spaces or cavities ranging in size from millimeters to several centimeters in diameter. Peliosis hepatis has been associated with the use of anabolic steroids and other hormones such as oral c...
  9. Pelizaeus-Merzbacher disease Pelizaeus-Merzbacher disease
    Pelizaeus-Merzbacher disease: A disorder of the central nervous system (CNS) in which there is loss of myelin, the sheath around the nerves. The disease is clinically characterized by nystagmus (rhythmical oscillation of the eyes), impaired motor development, tremor, progressive spasticity (increase...
  10. Pelizaeus-Merzbacher-like disease Pelizaeus-Merzbacher-like disease
    Pelizaeus-Merzbacher-like disease: A disease that is virtually identical to Pelizaeus-Merzbacher disease (PMD) but without a mutation in the PLP1 gene that causes PMD. Both PMD and Pelizaeus-Merzbacher-like disease (PMLD) are characterized by rapid, involuntary movements of the eye (nystagmus), impa...
  11. Pellagra Pellagra
    Pellagra: A disease due to deficiency of niacin, a B-complex vitamin. Pellagra is the "disease of the four D's" -- Diarrhea; Dermatitis: A scaly rash on skin exposed to light or trauma; Dementia: Mental disorientation, delusions and depression; and Death. Other features are ulcerations within ...
  12. Pelvic Pelvic
    Pelvic: Having to do with the pelvis, the lower part of the abdomen, located between the hip bones....
  13. Pelvic congestion syndrome Pelvic congestion syndrome
    Pelvic congestion syndrome: A condition in which there is congestion of blood in dilated veins of the pelvis. The ovarian vein and internal iliac veins are commonly affected, and the congestion may lead to chronic pelvic pain in women. The pain is usually dull, varies in severity, and is not related...
  14. Pelvic exam Pelvic exam
    Pelvic exam: An examination of the organs of the female reproductive system. In a pelvic exam, a speculum (an instrument for opening and widening certain passages of the body) is used to open the vagina and aid in visualizing the uterine cervix. A sample of cells may be taken off the surface of the ...
  15. Pelvic inflammatory disease (PID) Pelvic inflammatory disease (PID)
    Pelvic inflammatory disease (PID): Ascending infection of the female upper genital tract (the female structures above the cervix). PID is the most common and serious complication of sexually transmitted diseases (STDs), aside from AIDS, among women. The signs and symptoms of PID include fever, fou...