Pharmokinectics exam 2

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Questions and Answers

What's the primary site of absorption after oral administration?

  • Liver
  • Small intestines (correct)
  • Kidney
  • Stomach

Extended-release formulations are devised to control drug release at a reduced rate (Ka < K ), resulting in ____ drug level in plasma

sustained

How many half lives for a drug to reach steady state?

  • 2
  • 12
  • 8
  • 5 (correct)

Oral ______ ( F ) is determined by comparing the drug exposure following PO with that of IV dosing

<p>Oral bioavailability ( F ) is determined by comparing the drug exposure following PO with that of IV dosing</p> Signup and view all the answers

Which of these Drugs is not CV?

<p>Perampanel (C)</p> Signup and view all the answers

Which of these drugs in CIII

<p>Perampanel (B)</p> Signup and view all the answers

Which of these drugs Lowers BC concentrations

<p>Rufanimide (D)</p> Signup and view all the answers

Which of these drugs does NOT lower oral contraception concentration?

<p>Lacosamide (D)</p> Signup and view all the answers

The T2 of focal seizures is ___ minutes

<p>60</p> Signup and view all the answers

Which is NOT an initial treatment choice for status epilectus?

<p>PO phentobarbitol (B)</p> Signup and view all the answers

Which of these is first line for absence seizures

<p>All of these are first line (D)</p> Signup and view all the answers

Which is NOT first line for tonic clonic seizures

<p>Levetiracetem (B)</p> Signup and view all the answers

Which does NOT have a sodium factor of 1

<p>Fosphenytoin injection (D)</p> Signup and view all the answers

Which is a warning of lacosamide?

<p>Prolongs PR interval (B)</p> Signup and view all the answers

Which is true about Ethosuximide?

<p>It can cause lupus as an adverse event (A)</p> Signup and view all the answers

Which ASM is contraindicationed in sufla allergies

<p>Zonisamide (D)</p> Signup and view all the answers

Which has the lowest risk of hyponatremia

<p>Esliscarbazepine (C)</p> Signup and view all the answers

T/F: Hyponatremia is more common with Oxcarbazepine than with Carbmazepine?

<p>True (A)</p> Signup and view all the answers

Which is a UGT inhibitor

<p>Valproate (C)</p> Signup and view all the answers

What is the therapeutic range of Valproate?

<p>50-100 mg/l</p> Signup and view all the answers

Match the valproate concentration with what happens

<blockquote> <p>50 = therapeutic range 75 = Ataxia, sedation, lethargy 100 = tremor 175 = stupor, coma</p> </blockquote> Signup and view all the answers

What's the average valproate clearance for adults with liver failure

<p>3-4 mL/h/kg (A)</p> Signup and view all the answers

What's the average valproate clearance for normal adults

<p>7-12 mL/h/kg</p> Signup and view all the answers

Which form of Topiramate should alcohol be avoided for 6 hours before and after taking

<p>Trokendi (C)</p> Signup and view all the answers

Which has a box warning for serious neuropsychiatric events?

<p>Perampanel (B)</p> Signup and view all the answers

If child-pugh score is >___, reduce valproate dose by ___ %

<p>8, 25-50%</p> Signup and view all the answers

If you want to increase concentration of Valproate, increase dose by ___ % of predicted dose

<p>10-20</p> Signup and view all the answers

T/F: Cirrhosis decrease volume of distribution

<p>False (B)</p> Signup and view all the answers

What's the average volume of distribution for phenytoin

<p>0.65 L/kg (C)</p> Signup and view all the answers

T/F: Carbamazepine and phenytoin are UGT inducers

<p>True (A)</p> Signup and view all the answers

Which ASM is NOT contraindicated in Familial Short QT syndrome

<p>Epidolex (C)</p> Signup and view all the answers

Primidone is metablized by CYP____ into Phentobarbital and PEMA

<p>CYP2C9 (D)</p> Signup and view all the answers

T/F: Pentobarbital is a GABA-A Pam that increases channel opening time

<p>True (A)</p> Signup and view all the answers

Which drug is an NMDA-R blocker

<p>Felbamate (A)</p> Signup and view all the answers

Felbamate should be discontinued if ___ are 2x normal upper limit normal

<p>LFTs</p> Signup and view all the answers

What is a common first-line agent for focal seziures according to the text?

<p>Levetiracetam (Keppra) (B)</p> Signup and view all the answers

Which drug DOES NOT require renal dose adjustments?

<p>Lamotrigine (A)</p> Signup and view all the answers

Which drug should be taken with food?

<p>All of them should be taken with food (D)</p> Signup and view all the answers

Pregnant women suffering from tonic clonic seizures. Pick the best one to give her

<p>Lamotrigine (B)</p> Signup and view all the answers

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