Medications

Pavlovian conditioning: The Russian physiologist Ivan Petrovich Pavlov (1848-1936) conditioned dogs to respond in what proved to be a predictable manner, for example, by first ringing a bell before feeding them and then simply ringing the be...

Pavlov stomach - Medical

Pavlov stomach: A Pavlov pouch fashioned surgically from part of the stomach (which is isolated from the rest of the stomach). The pouch opens through a fistula (canal) on to the abdominal wall and permits sampling of the gastric contents. See Pav...

Pavlov pouch - Medical

Pavlov pouch: At different points along the dogs' digestive tracts, the Russian physiologist Ivan Petrovich Pavlov (1848-1936) surgically created pockets ("Pavlov pouches") from which he could obtain secretions, the aim being to study t...

Pavlov conditioning - Medical

Pavlov conditioning:The Russian physiologist Ivan Petrovich Pavlov (1848-1936) conditioned dogs to respond in what proved to be a predictable manner, for example, by first ringing a bell before feeding them and then simply ringing the bell u...

Pauling-Corey helix - Medical

Pauling-Corey helix: The alpha helix, the structure of most proteins, discovered by Linus Pauling and Robert Corey. See: Alpha helix.Last Editorial Review: 10/19/2003 Proteins: Large molecules composed of one or more chains of amino acids in a sp...

Pauling, Linus - Medical

Pauling, Linus: (1901-1994) American chemist who won the 1954 Nobel Prize in Chemistry "for his research into the nature of the chemical bond and its application to the elucidation of the structure of complex substances." He also won the 1962 Nobel P...

Pauling - Medical

Pauling: See: Pauling, LinusLast Editorial Review: 10/19/2003 Pauling, Linus: (1901-1994) American chemist who won the 1954 Nobel Prize in Chemistry "for his research into the nature of the chemical bond and its application to the elucidation of the...

arnica (Arnica montana)-topical

Paul M. Zoll - Medical

Paul M. Zoll: See: Zoll, Paul M..Last Editorial Review: 7/5/2004 Zoll, Paul M.: American cardiologist (1911-1999) and pioneer in the development of the cardiac monitor, pacemaker and defibrillator. Last Editorial Review: 7/5/2004...

Paul Ehrlich - Medical

Paul Ehrlich: 1. Paul Ehrlich (1854-1915), renowned German scientist and physician. See: Ehlich, Paul. 2. Paul R. Ehrlich (1932-), American evolutionary and population biologist.Last Editorial Review: 4/9/2004 Ehrlich, Paul: (1854-1915) Renowned Ge...

Arm-A-Med (isoetharine-inhalation solution)

Paul C. Lauterbur - Medical

Paul C. Lauterbur: See: Lauterbur, Paul C.Last Editorial Review: 6/29/2004 Lauterbur, Paul C.: American scientist (1929-) who shared the 2003 Nobel Prize for Physiology or Medicine with Sir Peter Mansfield for discoveries concerning "magnetic resona...

Patient-activated event recorder - Medical

Patient-activated event recorder: See: Patient-activated cardiac event recorder. Last Editorial Review: 1/31/2004 Patient-activated cardiac event recorder: A device that is implanted directly under the skin and is programmable with looping mem...

Patient-activated cardiac event recorder - Medical

Patient-activated cardiac event recorder: A device that is implanted directly under the skin and is programmable with looping memory that records electrocardiogram (ECG) tracings. The recorder is programmed by a physician to retrieve data, and displa...

Patient controlled analgesia - Medical

Patient controlled analgesia: See: PCA.Last Editorial Review: 3/21/2004 PCA: Commonly used abbreviation for patient-controlled analgesia. Analgesia simply means relief of pain. PCA is a method by which the patient controls the amount of pain medicin...

Aricept (DONEPEZIL-ORAL)

Patient autonomy - Medical

Patient autonomy: The right of patients to make decisions about their medical care without their health care provider trying to influence the decision. Patient autonomy does allow for health care providers to educate the patient but does not allow th...

Patient - Medical

Patient: A person under health care. The person may be waiting for this care or may be receiving it or may have already received it. There is considerable lack of agreement about the precise meaning of the term "patient." It is diversely defined as,...

pathy - Medical

-pathy: A suffix derived from the Greek "pathos" meaning "suffering or disease" that serves as a suffix in many terms including myopathy ( muscle disease), neuropathy ( nerve disease), retinopathopathy (disease of the retina), sympathy (litera...

argatroban-injectable

Pathophysiology - Medical

Pathophysiology: Deranged function in an individual or an organ that is due to a disease. A pathophysiologic alteration is a change in function as distinguished from a structural defect. Last Editorial Review: 4/27/2011 5:27:15 PM...

Pathology - Medical

Pathology: The study of disease. Pathology has been defined as "that branch of medicine which treats of the essential nature of disease." The word "pathology" comes from the Greek words "pathos" meaning "disease" and "logos" meaning "a trea...

Pathologist, speech-language - Medical

Pathologist, speech-language: See: Speech-language pathologist.Last Editorial Review: 6/12/2004 Speech-language pathologist: A specialist who evaluates and treats communication disorders and swallowing problems. A speech-language pathologist is so...

Pathologist - Medical

Pathologist: A doctor who identifies diseases by studying cells and tissues under a microscope.Last Editorial Review: 4/27/2011 5:27:15 PM...

Pathological hoarding - Medical

Pathological hoarding: Excessive hoarding of material goods, a condition that affects up to 40% of people with obsessive compulsive disorder ( OCD). Excessive hoarders, who fill their houses with accumulations of junk, usually newspapers, bags of old...

$Pathologic fracture - Medical$

Pathologic fracture - Medical

Pathologic fracture: A bone broken, not by trauma alone, but so weakened by disease as to break with abnormal ease. Pathologic fractures are characteristic of metastatic lung and breast cancer and myeloma.Last Editorial Review: 12/24/2003 ...

Aralen (chloroquine-oral)

Pathologic - Medical

Pathologic: 1. Indicative of or caused by disease, as in a pathologic fracture, pathologic tissue, or pathologic process. 2. Pertaining to pathology, the branch of medicine that studies disease and especially the essential nature of disease. ...

Pathognomonic - Medical

Pathognomonic: A sign or symptom that is so characteristic of a disease that it makes the diagnosis. For example, Koplik's spots (on the buccal mucosa opposite the lst and 2nd upper molars) are pathognomonic of measles. The word "pathognom...