A-Z NAVLE Study Guide - Page 58

Vocabulary-style flashcards covering key terms and concepts from Page 58 of the NAVLE study guide notes.

Psittacine Beak and Feather Disease

Debilitating disease of psittacines with abnormal feathers, beak abnormalities, and immunosuppression; diagnosed by feather follicle biopsy showing intracytoplasmic inclusions; progressive and usually fatal.

Psittacosis (Chlamydia psittaci)

Disease in birds; reportable and zoonotic; aerosols transmission; signs include weight loss, depression, anorexia, diarrhea, lime-green urates, respiratory signs; hepatomegaly/splenomegaly/air sac changes; diagnosis via ELISA, titers, intracellular elementary bodies on impression smears; treatment with doxycycline.

Psoroptes cuniculi

Mite that causes otitis externa in rabbits.

Pullorum Disease

Infection of birds with Salmonella pallorum.

Purpura Hemorrhagica

Vasculitis; immune-mediated hemorrhagic disease with extravasation of blood into tissues; ecchymoses/petechiae; nonthrombocytopenic; in horses after prior Streptococcus equi infection; mediated by IgA-streptococcal M antigen immune complexes.

Pyoderma

Pyogenic skin infection commonly due to Staphylococcus intermedius; predisposed by metabolic disorders, immune deficiencies, endocrine imbalances, or allergies; treated with antibiotics (e.g., clavamox).

Pyloric Stenosis

Benign gastric outlet obstruction from hypertrophy of pyloric circular muscle fibers; most common in young brachycephalic dogs (e.g., Boston terrier).

Pyometra in Cow

Metritis in cows; inflammation of uterine muscular and endometrial layers due to contamination at parturition; treated with local and systemic antibiotics.

Pyometra in Mare

Uterine infection treated with uterine lavage and local antibiotics.

Pyometra in Small Animals

Diestral disorder with abnormal endometrium and bacterial infection; progesterone after ovulation promotes endometrial growth and inhibits WBC response; E. coli common; diagnosis via history, radiographs, ultrasound; treatment via ovariohysterectomy; medical management with PGF2 to induce uterine contractions and expulsion of exudate plus broad-spectrum antibiotics.

Pyrrolizidine Alkaloid Toxicity

Chronic poisoning from Senecio (ragwort), Crotalaria (rattleweed), Heliotropium; causes hepatic failure in cattle, horses, pigs, and farmed deer; sheep/goats more resistant; signs include weight loss, dullness, gastrointestinal signs, jaundice, photosensitization, hepatic encephalopathy; dx by history and signs; prognosis often poor; remove plant material.

Pythiosis/Phycomycosis

Aquatic mold/fungi affecting GIT and skin; Gulf Coast region; infection via motile zoospores in damaged tissue; commonly affects young large-breed dogs; targets pylorus, root of mesentery, and anus; signs include vomiting and diarrhea; diagnosis by radiographs, biopsy, histopathology; treated with complete surgical excision; differential includes perineal hernias and tumors.

Q-Fever (Coxiella burnetii)

Rickettsial infection; usually inapparent in animals; can cause abortion in sheep, goats, and cattle; zoonotic; causes influenza-like illness and endocarditis in humans.

Quittor

Chronic suppurative inflammation of the lateral cartilage of the horse's third phalanx; leads to lameness.

Doxycycline

Broad-spectrum antibiotic used to treat Psittacosis and other infections.

Staphylococcus intermedius

Bacteria commonly responsible for pyoderma (skin infections) in animals.

PGF2 (Prostaglandin F2 alpha)

Hormone used in pyometra treatment to induce myometrial contraction and cervical relaxation, aiding expulsion of uterine contents; often used with antibiotics; may be combined with other modalities depending on case.