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Veterinary Medicine Quiz sobre Pharmacology Vet 202 Chapter Nine Study Guide, criado por Kelly Kinsinger em 30-10-2018.

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Pharmacology Vet 202 Chapter Nine Study Guide

Questão 1 de 25

1

The drug of choice for managing seizures long term is an oral barbiturate that has the benefit of being relatively inexpensive while having an extensive half-life. What is this drug?

Selecione uma das seguintes:

  • Diazepam

  • Phenobarbital

  • Xylazine

  • Potassium bromide

  • Pentobarbital

Explicação

Questão 2 de 25

1

Over time, barbiturate use results in upregulation of the enzymes responsible for the drug’s breakdown. This phenomenon is known as enzyme __________________.

Selecione uma das seguintes:

  • tolerance

  • anabolism

  • induction

  • inactivation

  • modulation

Explicação

Questão 3 de 25

1

Diazepam is a benzodiazepine tranquilizer that, in contrast to phenobarbital which is used as a long-term anti-seizure medication, is instead used as an emergency IV drug for use during an active convulsion. All of the following are characteristics of diazepam except one. Which choice is incorrect?

Selecione uma das seguintes:

  • The mode of action is stimulation of GABA

  • Oral dosing is severely limited by an extensive first-pass effect

  • Tends to cause withdrawal signs after abruptly ceasing use

  • Good choice for a dog with a history of aggression that is controlled with obedience training

Explicação

Questão 4 de 25

1

Which of the following is a property of potassium bromide?

Selecione uma das seguintes:

  • Half-life exceeds 3 weeks

  • Drug of choice for cats with seizures

  • Often used as the sole therapy for seizures

  • Antagonizes the effect of phenobarbital if given concurrently

Explicação

Questão 5 de 25

1

There are several mechanisms of action for behavior-modifying drugs used in veterinary medicine. Which of the following is not considered one of these mechanisms?

Selecione uma das seguintes:

  • Modifying neurotransmitter release

  • Imitating a neurotransmitter in an agonistic or antagonistic manner

  • Modifying neurotransmitter duration by altering chemical breakdown capability

  • Stimulate euphoria by binding to the µ opioid receptor

Explicação

Questão 6 de 25

1

Which neurotransmitter does acepromazine antagonize to decrease anxiety in both humans and veterinary patients?

Selecione uma das seguintes:

  • Seratonin

  • Dopamine

  • Glycine

  • GABA

Explicação

Questão 7 de 25

1

Which of the following classes of antidepressant medications function by modifying the activity of enzymes that are responsible for the biotransformation of neurotransmitters?

Selecione uma das seguintes:

  • Tricyclic antidepressants (TCAs)

  • Monoamine oxidase inhibitors (MAOIs)

  • Selective Serotonin Reuptake Inhibitors (SSRIs)

  • All of the above

Explicação

Questão 8 de 25

1

What is the general role of the neurotransmitter serotonin?

Selecione uma das seguintes:

  • Mood determinant

  • Starting material for catecholamine production

  • Central nervous system inhibition

  • Increase parasympathetic nervous system tone

Explicação

Questão 9 de 25

1

What is primidone’s primary mechanism of activity?

Selecione uma das seguintes:

  • Directly increases activity of the inhibitory neurotransmitter glycine

  • Directly decreases the activity of the excitatory neurotransmitter norepinephrine

  • Is metabolized to phenobarbital, so functions to stimulate GABA

  • Agonism of 2-adrenergic receptors

Explicação

Questão 10 de 25

1

An uncommonly used unit of measurement that is often used in conjunction with barbiturates is the grain. What is the size in milligrams of a 2-grain phenobarbital tablet?

Selecione uma das seguintes:

  • 2 mg

  • 20 mg

  • 120 mg

  • 200 mg

Explicação

Questão 11 de 25

1

Seizures generally originate from the brain but seizure activity can also arise from other causes. Veterinary technicians should always consider these other sources except:

Selecione uma das seguintes:

  • hypoxia.

  • hypoglycemia.

  • hypocalcemia.

  • hypothermia.

Explicação

Questão 12 de 25

1

________________ is the term used to describe seizure activity that is prolonged and can result in positive feedback where muscle activity increases temperature and increase seizure activity.

Selecione uma das seguintes:

  • Idiopathic

  • Status epilepticus

  • Prodromal phase

  • Postictal phase

Explicação

Questão 13 de 25

1

Phenobarbital used to control seizures has a well-established therapeutic range for dogs but dosages vary widely based upon:

Selecione uma das seguintes:

  • weight of the animal.

  • how the individual metabolizes the drug.

  • frequency of seizures.

  • animals age.

Explicação

Questão 14 de 25

1

Side effects of using phenobarbital to control seizure activity in dogs include

Selecione uma das seguintes:

  • ataxia.

  • polyuria.

  • polyphagia.

  • All of the above

Explicação

Questão 15 de 25

1

Phenobarbital induced hepatotoxicity:

Selecione uma das seguintes:

  • is idiosyncratic in dogs.

  • happens more often in cats.

  • is a common occurrence.

  • causes kidney failure.

Explicação

Questão 16 de 25

1

On an animal that is not responding particularly well to phenobarbital or the phenobarbital/bromide combination for long-term seizure control, all of the following drugs might be tried except:

Selecione uma das seguintes:

  • Clomicalm.

  • levetricetam.

  • gabapentin.

  • zonisamide.

Explicação

Questão 17 de 25

1

Drugs that “lyse” anxiety or decrease fear responses are called:

Selecione uma das seguintes:

  • antipsychotic drugs.

  • anxiolytic drugs.

  • antidepressant drugs.

  • major tranquilizers.

Explicação

Questão 18 de 25

1

Three classes of antidepressant drugs used in human beings have also found use in veterinary medicine include all except:

Selecione uma das seguintes:

  • monoamine oxidase inhibitors (MAOI)

  • tricyclic antidepressants (TCA’s)

  • selective serotonin reuptake inhibitors (SSRI’s)

  • gamma () aminobutyric acid (GABA)

Explicação

Questão 19 de 25

1

Clomipramine’s FDA–approved indication is for treatment of obsessive-compulsive disorders in dogs. A more common use of clomipramine in veterinary medicine is for:

Selecione uma das seguintes:

  • treatment of separation anxiety.

  • treatment of depression.

  • treatment of seizures.

  • treatment of epilepsy.

Explicação

Questão 20 de 25

1

Plasma phenobarbital concentrations achieved with any given dose vary considerably from patient to patient. Therefore, the only way to ensure a dosage regimen is adequate is to

Selecione uma das seguintes:

  • monitor the animal’s behavior.

  • check blood levels of phenobarbital.

  • check frequent blood chemistry panels.

  • monitor the animal’s urine output.

Explicação

Questão 21 de 25

1

When considering neurotransmitter-modifying drugs for behavior therapy, which of the following is true?

Selecione uma das seguintes:

  • Use of these drugs provides an immediate response

  • Once an effective dose is determined, no further adjustments are needed

  • Every animal responds differently to these drugs

  • Allows for optimal behavior modification without requiring training

Explicação

Questão 22 de 25

1

Potassium bromide is used as an adjunct drug for treating seizures when standard doses of barbiturates prove ineffective alone. Considering the long 3-week half-life of potassium bromide, how would you determine the length of time it takes to reach a steady state when using this drug daily?

Selecione uma das seguintes:

  • 10.5 days

  • 21 days

  • 21 weeks

  • 105 days

  • 201 Days

Explicação

Questão 23 de 25

1

Which of the following is not a side effect of barbiturate use?

Selecione uma das seguintes:

  • Polyphagia

  • Polydactyly

  • Polydipsia

  • Polyuria

Explicação

Questão 24 de 25

1

What is the portion of the brain that controls animal emotion and is thus targeted for alteration by behavior-modifying drugs?

Selecione uma das seguintes:

  • Cerebrum

  • Cerebellum

  • Limbic region

  • Pituitary gland

  • Pineal gland

Explicação

Questão 25 de 25

1

In addition to treating behavioral problems, selegiline is also used to treat this condition in dogs.

Selecione uma das seguintes:

  • Cushing’s disease

  • Parkinson’s disease

  • Pituitary dwarfism

  • Hypoadrenocorticism

Explicação