Pharmacology Vet202 Chapter Seven Study Guide

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Quiz on Pharmacology Vet202 Chapter Seven Study Guide, created by Kelly Kinsinger on 21/10/2018.
Kelly Kinsinger
Quiz by Kelly Kinsinger, updated more than 1 year ago
Kelly Kinsinger
Created by Kelly Kinsinger over 5 years ago
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Resource summary

Question 1

Question
Exogenous drugs are
Answer
  • naturally occurring.
  • made inside the body.
  • made outside the body.
  • cannot mimic the natural compound.

Question 2

Question
With regards to thyroid hormone, which is the correct statement?
Answer
  • In tissue, T4 is changed to T3 by losing an iodine
  • T4 is the more active form of the thyroid hormone
  • In tissue, T3 is changed to T4 by adding a iodine
  • Both T3 and T4 are active thyroid hormone

Question 3

Question
Hypothyroidism is commonly recognized and treated in
Answer
  • cats.
  • dogs.
  • horses.
  • cattle.

Question 4

Question
Which form of an endocrine disease means that the source of the problem for the disease resides in the organ that produces the final hormone?
Answer
  • primary.
  • secondary.
  • tertiary.
  • idiopathic.

Question 5

Question
Hypothyroidism as result of decreased iodine ingestion causes Goiter because
Answer
  • no thyroid hormone precursors T1 or T2 can be produced.
  • to many thyroid hormone precursors T1 or T2 are produced.
  • high levels of TSH stimulates thyroid tissue, leading to hypertrophy of the thyroid gland.
  • d. the thyroid gland is inflamed.

Question 6

Question
Levothyroxine used to treat hypothyroidism
Answer
  • all brands react the same in the body.
  • has a wide therapeutic (safety) index.
  • is less effective than liothyroxine.
  • must be administered IV.

Question 7

Question
Thyrotoxicosis is another name for
Answer
  • hypothyroidism.
  • hyperthryoidism.
  • euthryoidism.
  • thyroplastic anemia.

Question 8

Question
Palpation of the ventral neck of a cat should be performed on hyperthyroid felines that exhibit
Answer
  • tachypnea.
  • tachycardia.
  • lethargy.
  • weight gain.

Question 9

Question
Cats with hyperthyroidism because of thyroid tumors often experience and increase in beta-1 receptors on __________ cells.
Answer
  • Heart
  • lung
  • GI
  • Liver

Question 10

Question
Type 1 diabetes mellitus is also known as insulin dependent diabetes mellitus and is more commonly diagnosed in
Answer
  • cats
  • dogs
  • horses
  • cattle

Question 11

Question
Animals with follicular cysts will
Answer
  • exhibit non-cycling behavior and appear pregnant.
  • never show signs of estrus.
  • always appear to be in heat.
  • never settle or get pregnant.

Question 12

Question
Developing ovarian follicles produce which two hormones.
Answer
  • Estrogen/Progesterone
  • Progesterone/Inhibin
  • Inhibin/Estrogen
  • Do not produce hormones

Question 13

Question
Human chorionic gonadotropin and equine chorionic gonadotropin are examples of gonadotropins
Answer
  • released by the pituitary.
  • which have LH like effects.
  • are produced by the Dam’s uterus.
  • are the same as gonadorelins.

Question 14

Question
Progesterone has a negative feedback effect on the release of all except
Answer
  • FSH
  • LH
  • GnRH
  • estrogen

Question 15

Question
Prostaglandins are commonly used to terminate pregnancies in many domestic species. Injection of the specific prostaglandin F2-alpha (PgF2-alpha) is alone not 100% effective in causing parturition in cattle that are near term. Why?
Answer
  • PgF2-alpha is a prostaglandin that functions as a gastroprotectant
  • PgF2-alpha is not labeled for use in food animals
  • PgF2-alpha doesn’t exert an influence on the uterus
  • PgF2-alpha doesn’t exert an influence on the corpus luteum

Question 16

Question
Of the following list, who should be chosen to administer prostaglandin for estrous synchronization of dairy cows on a farm?
Answer
  • The farmer who is 6 months pregnant
  • The farmer’s son who is an asthmatic
  • The farm hand who forgot her gloves in her truck
  • The healthy technician who is used to handling needles and syringes

Question 17

Question
What is the hormone that promotes the maintenance of pregnancies?
Answer
  • Oxytocin
  • Prostaglandin
  • Progesterone
  • Prolactin
  • Relaxin

Question 18

Question
What would be the effect of using a U-40 syringe instead of a U-100 syringe to pull up a dose of insulin?
Answer
  • No effect—they are the same syringe, just marketed differently
  • Insulin react s adversely with the syringe materials if the drugs are mismatched
  • The dose will likely be incorrect, leading to possible dangerous side effects
  • It’s not possible, as the bottles require specific syringes to draw up the drug

Question 19

Question
Which type of injectable insulin product should be used during a diabetic emergency, administered via the IV route?
Answer
  • PZI (protamine zinc insulin)
  • Regular insulin
  • NPH (neutral protamine Hagedorn insulin)
  • Insulin glargine

Question 20

Question
A farmer has a cow that has experienced chronic ketosis over the period of 2 months. The herd veterinarian diagnoses fatty liver syndrome, a condition where over conditioned cattle deposit excess lipid in their liver parenchyma resulting in a metabolic disorder which effects the body’s utilization of blood sugar. In addition to the standard ketosis treatment of IV glucose, dexamethasone, and B vitamins, the veterinarian adds BID insulin to the protocol for 3 days. Why is this addition contraindicated in this scenario?
Answer
  • Because cattle don’t respond to insulin
  • Insulin receptors won’t react to the insulin
  • Insulin is too expensive to be reliably used in farm practice
  • There is no problem with this protocol

Question 21

Question
Why would a cat with hyperthyroidism as well as blood calcium imbalances benefit from treatment with radioactive iodine in place of surgical thyroidectomy?
Answer
  • Need to spare the parathyroid glands
  • This is obviously an old cat, which would not be suitable for a major surgery
  • Thyroidectomy isn’t 100% curative for hyperthyroidism
  • Radioactive iodine can be given at home by the pet’s owners

Question 22

Question
Endocrine hormones function to not only affect a target tissue, but to cause a subsequent decrease in the continued release of more of the same hormone. This mechanism that limits the amount of a hormone response that occurs is called:
Answer
  • tolerance.
  • upregulation.
  • negative feedback.
  • resistance.
  • positive stimulus.

Question 23

Question
Concerning the cascade responsible for the production of thyroid hormone, first a _______________ hormone is produced from the hypothalamus, which acts on the anterior pituitary to produce a ________________ hormone that function to cause the thyroid gland to produce the final hormone in the cascade, thyroxine.
Answer
  • primary, secondary
  • stimulating, controlling
  • positive, negative
  • releasing, stimulating

Question 24

Question
Why is levothyroxine (T4) preferred for treatment of hypothyroidism than liothyronine (T3)?
Answer
  • T3 is a synthetic drug, while T4 is natural
  • T3 is never used in clinical cases
  • T4 is much cheaper than T3
  • T4 has a much shorter half-life than T3, so it’s potentially more toxic
  • T4 appears more of a factor in the negative feedback loop than T3

Question 25

Question
What is the euthyroid state?
Answer
  • Abnormal thyroid levels that occur with disease
  • Euthanasia of an animal with a primary thyroid tumor
  • Normal thyroid hormone levels
  • Opposite of idiopathic (unknown) cause of thyroid dysfunction
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