Flashcards in PU/PD Deck (22)
In most cases is the primary disorder causing the PU or the PD?
What are conditions in which PD causes PU?
Psychogenic PD and PD 2* to hyperthermia
Increase from normal water consumption
Increase from normal urine output
What is normal water consumption in dogs and cats?
What measurement defines polydipsia?
What measurement defines polyuria?
If a PU/PD case is polyphagic, what are your top ddx?
DM, hyperadrenocorticism, hyperthyroidism
If a PU/PD case also has weight loss, what are the most common ddx?
Renal/hepatic failure, neoplasia, DM, hyperthyroidism
If you have skin/coat changes along with PU/PD what are your top ddx?
Hyperadrenocorticism (dog) and hyperthyroidism (cat)
If you have vulvar discharge along with PU/PD what is your top ddx?
If you have a rectal mass along with PU/PD what is your top ddx?
Anal sac carcinoma
If you have bilateral cataracts in a dog w/PU/PD what is your top ddx?
If you have lymphadenopathy in a PU/PD case what is your top ddx?
Lymphoma (or other neoplasia)
What is the main diagnostic test that can provide a lot of information in helping rule in or out causes of PU/PD?
Minimum database (CBC, chem)
Specific gravity of _____ should only be seen in PU/PD animals w/marked glucosuria
What makes renal insufficiency a less likely ddx of PU/PD?
Hyposthenuria (USG <1.008)
What does glucosuria suggest?
DM or primary renal glucosuria
What endocrine cause of PU/PD is very difficult to rule out?
How do you assess for diabetes insipidus?
DDAVP trial (may take a few weeks to work d/t medullary washout)
How do you rule out psychogenic polydipsia?
Water deprivation test (debatably unethical)