CST Surgical Pharmacology 2

Question 1

Which local anesthetic is an ester-type agent commonly used for spinal anesthesia?

Accepted Answer

Tetracaine

Answer

Tetracaine is an ester-type local anesthetic frequently used for spinal (intrathecal) anesthesia.

Question 2

What is the primary mechanism of action of heparin in surgical patients?

Accepted Answer

Activates antithrombin III to inhibit thrombin

Answer

Heparin works by activating antithrombin III, which then inhibits thrombin and other clotting factors.

Question 3

Which drug is used to reverse the effects of benzodiazepines administered during surgery?

Accepted Answer

Flumazenil

Answer

Flumazenil is a benzodiazepine antagonist that competitively reverses sedation and respiratory depression.

Question 4

Epinephrine is often added to local anesthetics for which primary purpose?

Accepted Answer

To reduce systemic toxicity by causing vasoconstriction

Answer

Epinephrine causes vasoconstriction at the injection site, slowing absorption and reducing systemic toxicity while prolonging the block.

Question 5

Which antibiotic class is most commonly used for surgical site infection prophylaxis?

Accepted Answer

Cephalosporins

Answer

First-generation cephalosporins such as cefazolin are the standard for most surgical prophylaxis due to their gram-positive coverage and safety profile.

(CST) Certified Surgical Technician Practice Test

(CST) Certified Surgical Technician Practice Test

CST Surgical Pharmacology 2