Internal Med Rotation Flashcards
What is the function of cortisol
Regulates blood pressure, vascular tone, carbohydrate and fat metabolism
What does ADH do?
Regulates sodium
Cortisol is an insulin _ hormone
antagonist
What is the most potent stimulant for cortisol production?
ACTH
For dogs, they can have primary hypothryoidism. What are the two most common causes?
Lymphocytic thryoiditis and idiopathic atrophy
What are the signs of hypothryoidism in dogs and signalment?
Middle age, pure breed dogs.
Signs -> decreased metabolic rate, lethargy, weakness, obestiy and exercise intolerance
What routine lab tests can we do to detect hypothryoidism?
We can see hypercholesteremia, sometimes mild non regenerative anemia
-Clinical signs, routine chemistries, specific thyroid function tests, response to treatmetn
What is the standard typically for testing hypothryoidism
Serum total T4. Low T4 not specific for hypothryoidism .
-Low T4 and clincial signs adeqaute for diagnosis .
Decreased thyroid hormones _ TSH
increases. Will see elevated TSH.
-Test is not very sensitive
What can we see on CBC for early hypothroidism
Elevated TSH and low or normal T4
What do we use to treat hypothroidism?
Levothryoixine
How do we monitor dogs with hypothryoidism?
-recheck in 6-8 weeks, clincial resonse and post pill testing.
-see good clincial resonse is most importnat.
What CS can we see related to hypercalcemia?
generalized weakness, PU/PD, lethargy, anorexia, vomiting,
How do we treat diseases with hypercalcemia?
- Rule our spurious hypercalcemia.
- if repeateable, measure an ionized calcium. If azotemia is present, could be induced renal failure. If normal ionized calcium then its renal failure induced hypercalcemia.
- History and Cs
- Look at CBC and chem.
What is the most common type of cancer that causes hypercalcemia?
lymphoma
What Cs relate to hypocalcemia?
muscle tremors, facial rubbing, stiff gait, behavior changes, and seizures
What diseases tend to have mild or severe hypocalcemia?
primary hypoparathryoidism ,ecclampsia, malabsorption
How do we go about diagnosing hypocalcemia?
- Rule out hypoabluminemia.
- History and Cs.
Type 1 vs Type II diabetes mellitus
- Aboslute hypoinsulinemia. loss of Beta cells. Occus via immune mediated destruction. Requires insulin injections for the rest of its life.
- Relative hypoinsulinemia. Impairment of Beta cells. Concurrent insulin resistance. Also called non-insulin dependent. Can only occur in the cat, cna manage with diet sometimes.
What drug can cause an increase in insulin?
corticosteroids
What are the CS of diabetes mellitus?
-glyosuria and polyuria
-PU/PD
-weight loss
-polyphagia
What can we see on serum chemistry with diabetes mellitus?
Hyperglycemia, Increased liver enzymmes, Hyperchoelsteremia and triglycerides
How do we diagnose diabetes mellitus?
CS, persistent fasting hyperglycemia, persistent fasting glucosuria.
What test do we use to differentiate between stress hyperglyemia and diabetes?
fructosamine