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PVC

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polyvinyl chloride; premature ventricular contraction.

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Pv̄O2

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Symbol for partial pressure of oxygen in mixed venous blood.

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PVP

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polyvinylpyrrolidone.

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PVP-iodine

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povidone-iodine.

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PWA

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person with AIDS.

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PWB

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partial weight bearing.

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PWID

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people who inject drugs; persons who inject drugs.

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P2Y12

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The adenosine diphosphate receptor on platelets. It is the target for drugs such as clopidogrel, prasugrel, or ticagrelor, which are used to inhibit platelet aggregation.

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pyarthrosis

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(pī″ăr-thrō′sĭs) [Gr. pyon, pus, + arthron, joint, + osis, condition] Pus in the cavity of a joint.

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pycno-, pycn-, pykno-, pykn-

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[Gr. pyknos, compact, thick] Prefixes meaning dense, thick, compact, frequent.

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Pycnogenol

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(pik-noj′ĕn-ol″) A trademark for a mixture of antioxidant chemicals derived from the maritime pine Pinus pinaster, native to the western Mediterranean. It is marketed in alternative medicine as pine bark extract and to treat chronic venous insufficiency, retinopathy, or erectile dysfunction.

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pyelitis

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(pī″ĕ-līt′ĭs) [pyelo- + -itis] Inflammation of the pelvis of the kidney and its calices. pyelitic, adj.

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pyelo-

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[Gr. pyelos, pelvis] Combining form meaning pelvis.

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pyelogram

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(pī′ĕ-lō-grăm) [Gr. pyelos, pelvis, + gramma, something written] A radiograph of the ureter and renal pelvis.

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intravenous p. ABBR: IVP. A pyelogram in which a radiopaque material is given intravenously. Multiple radiographs of the urinary tract taken while the material is excreted provide important information about the structure and function of the kidney, ureter, and bladder. This examination may be used to detect kidney stones and other lesions that may block or irritate the urinary tract.

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pyelography

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(pī″ĕ-lŏg′ră-fē) [″ + graphein, to write] Radiography of the renal pelvis and ureter after injection of a radiopaque contrast medium.

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pyelolithotomy

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(pī″ĕ-lō-lĭth-ŏt′ō-mē) [″ + ″] The surgical removal of a stone from the renal pelvis.

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pyelonephritis

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(pī″ĕ-lō-nĕ-frīt′ĭs) [pyelo- + nephritis] Inflammation of the kidney and renal pelvis, usually due to a bacterial infection that has ascended from the urinary bladder. SYN: tubulointerstitial nephritis. SEE: Nursing Diagnoses Appendix.

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ETIOLOGY: Escherichia coli is usually the agent. Cultures of urine and blood are obtained to guide therapy.

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SYMPTOMS: This condition is characterized by the sudden onset of chills and fever with ...

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