Articles by Don R. Waldron, DVM, DACVS - Veterinary Medicine
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Articles by Don R. Waldron, DVM, DACVS

Exploratory celiotomy (Proceedings)

Nov 1, 2009

Surgical exploration of the abdomen is performed for diagnostic, therapeutic, and prognostic purposes.

Nasopharyngeal and otic polyps in the cat (Proceedings)

Nov 1, 2009

There are many causes of upper airway disease in the cat.

Laryngeal paralysis in dogs and cats (Proceedings)

Nov 1, 2009

Laryngeal paralysis is a congenital or acquired disease that causes upper airway obstruction.

Feline megacolon and colonic neoplasia (Proceedings)

Apr 1, 2009

Megacolon occurs more frequently in cats than dogs and is usually seen in middle-aged to geriatric cats.

Feline urinary diversion procedures (Proceedings)

Apr 1, 2009

Urine diversion techniques are performed to temporarily or permanently divert urine from its normal anatomic course from the kidney through the ureter to the bladder and finally through the urethra.

Feline Reconstructive Surgery

Aug 1, 2007

There are many different causes of skin defects in both cats and dogs. Traumatic wounds such as degloving injuries, dog or cat bites, burns, deep fungal infections, and extensive wounds caused by surgical removal of neoplastic disease are examples of clinical situations where reconstructive surgical techniques may be necessary.

Surgical Disease and Hypercalcemia

Aug 1, 2007

Hypercalcemia is defined as a serum or plasma total calcium level exceeding the normal level. Reference ranges vary considerably among laboratories however a serum calcium concentration > 12mg/dl is considered to be a clinically important elevation and a repeated calcium elevation warrants clinical investigation. Routine calcium levels reported on chemistry profiles are Total calcium, of which 50% is ionized (the metabolically active form) , 40% is protein bound (to albumin) and 10% calcium complexes. In the dog serum calcium concentration is adjusted for albumin level by subtracting the albumin level from the total Ca++ level and adding 3.5.;this yields a corrected calcium level in mg/dl. This method is not accurate in cats. Recently, (2005) it has been suggested that ionized calcium must be measured directly in order to obtain the most accurate level and prevent misdiagnosis of disease especially in dogs with chronic renal failure.

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