Tick the substances whose mechanisms are based on interaction with ion channels

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Pharmacological Lifespan Treatment Questions

Question 1 of 5

Tick the substances whose mechanisms are based on interaction with ion channels

A. Sodium channel blockers B. Calcium channel blockers C. Potassium channels activators D. All of the above

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 2 of 5

Most local anesthetic agents consist of:

A. Lipophylic group (frequently an aromatic ring) B. Intermediate chain (commonly including an ester or amide) C. Amino group D. All of the above

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 3 of 5

Which of the following statements is not correct for local anesthetics?

A. In a tissue they exist either as an uncharged base or as a cation B. A charged cationic form penetrates biologic membranes more readily than an uncharged form C. Local anesthetics are much less effective in inflamed tissues D. Low pH in inflamed tissues decreases the dissociation of nonionized molecules

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 4 of 5

The choice of a local anesthetic for specific procedures is usually based on:

A. The duration of action B. Water solubility C. Capability of rapid penetration through the skin or mucosa with limited tendency to diffuse away from the site of application D. All of the above

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Question 5 of 5

Which of the following local anesthetics is more cardiotoxic?

A. Procaine B. Bupivacaine C. Lidocaine D. Mepivacaine

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

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