antiepileptic medications

Topic: Pathology

Created on Saturday, September 2 2006 by

Last modified on Saturday, September 2 2006.

 
        A) Clonazepam is indicated for treatment of absence seizures.
 
        B) Carbamazepine is indicated for treatment of absence seizures.
 
        C) Lamotrigine causes reduction of sodium currents.
 
        D) Lamotrigine is indicated for treatment of Lennox-Gastaut syndrome.
 
        E) Gabapentin causes increase of GABA-mediated currents.
 

 

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This question was created on September 02, 2006 by .
This question was last modified on September 02, 2006.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) Clonazepam is indicated for treatment of absence seizures.

This answer is incorrect.

The statement, "Clonazepam is indicated for treatment of absence seizures." is true.
Clonazepam causes reduction of sodium currents, causes increase of GABA-mediated currents, is indicated for treatment of absence seizures, is indicated for treatment of atypical absence seizures, is indicated for treatment of atonic seizures, is indicated for treatment of myoclonic seizures, is metabolized primarily in the liver, and is a known teratogen, or evidence for its teratogenicity exists.  (See References)

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B) Carbamazepine is indicated for treatment of absence seizures.

This answer is correct.

The statement, "Carbamazepine is indicated for treatment of absence seizures." is false.
Carbamazepine causes reduction of sodium currents, works via an unknown mechanism, is indicated for treatement of complex partial seizures, is indicated for treatment of partial seizures, is indicated for tonic-clonic, is metabolized primarily in the liver, induces hepatic enzymes, is a known teratogen, or evidence for its teratogenicity exists, is associated with an increased risk of spina bifida if taken during pregnancy, is excreted in breast milk, must be started at a low dose, may exacerbate absence seizures, has been shown in comparative studies to be one of the two safest of the older AEDs, and is a drug for which the AAN recommends patients stick to one manufacturer's preparation, as evidence exists that there are differences between generic and brand name preparations.  (See References)

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C) Lamotrigine causes reduction of sodium currents.

This answer is incorrect.

The statement, "Lamotrigine causes reduction of sodium currents." is true.
Lamotrigine causes reduction of sodium currents, causes increase of GABA-mediated currents, is a glutamate receptor antagonist, is indicated for treatment of partial seizures, is indicated for tonic-clonic, is indicated for treatment of atonic seizures, is indicated for treatment of tonic seizures, is indicated for treatment of myoclonic seizures, is indicated for treatment of Lennox-Gastaut syndrome, is metabolized primarily in the liver, and is excreted in breast milk.  (See References)

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D) Lamotrigine is indicated for treatment of Lennox-Gastaut syndrome.

This answer is incorrect.

The statement, "Lamotrigine is indicated for treatment of Lennox-Gastaut syndrome." is true.
Lamotrigine causes reduction of sodium currents, causes increase of GABA-mediated currents, is a glutamate receptor antagonist, is indicated for treatment of partial seizures, is indicated for tonic-clonic, is indicated for treatment of atonic seizures, is indicated for treatment of tonic seizures, is indicated for treatment of myoclonic seizures, is indicated for treatment of Lennox-Gastaut syndrome, is metabolized primarily in the liver, and is excreted in breast milk.  (See References)

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E) Gabapentin causes increase of GABA-mediated currents.

This answer is incorrect.

The statement, "Gabapentin causes increase of GABA-mediated currents." is true.
Gabapentin causes increase of GABA-mediated currents, is a glutamate receptor antagonist, is indicated for treatment of partial seizures, is indicated for tonic-clonic, is metabolized primarily by the kidney, is approved as adjunct therapy only, is excreted in breast milk, and has no known significant interactions with other AEDs.  (See References)

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References:

1. Browne, T.R., & Holmes, G.L. (2004). Handbook of Epilepsy, 3rd Edition. Lippincott Williams & Wilkins, Philadelphia., Leppik, I.E. (2001). Contemporary Diagnosis and Management of the Patient with Epilepsy, 5th Edition. Handbooks in Health Care, Newtown, Pennsylvania.

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pathology
antiepileptic medications
Question ID: 540025025
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 09/02/2006
Modified: 09/02/2006
Estimated Permutations: 0