Surgical Pharmacology - Domain Overview
Surgical Pharmacology (BSPH) accounts for approximately 4.0% of the CST exam (6 of 150 scored items). It covers anesthetic agents (general, local, and regional), hemostatic agents, antibiotics, contrast media, irrigation solutions, medication handling on the sterile field, and basic drug calculations.
What This Domain Covers
- Local, regional, and general anesthesia categories and their common agents.
- Hemostatic agents including topical thrombin, tranexamic acid, and fibrin sealants.
- Irrigation solution selection, including nonelectrolyte irrigants for monopolar resectoscope procedures.
- Prophylactic antibiotic timing and surgical site infection prevention.
- Medication safety on the sterile field, including labeling and verbal confirmation requirements.
- Basic drug calculations, including dilution ratios and metric conversions.
Why BSPH Matters in Practice
Medication errors in the OR are a well-documented, preventable safety hazard, and this domain tests the specific safety-critical facts - such as epinephrine's end-arterial contraindication - that directly protect patients during daily practice, not just on exam day.
Frequently Asked Questions
What percentage of the CST exam is BSPH?
Surgical Pharmacology makes up approximately 4.0% of the exam, or 6 of the 150 scored questions.
Do I need to memorize dosing calculations for the exam?
The exam tests basic pharmacology concepts and safety principles relevant to the surgical technologist role, not the detailed dosing calculations reserved for anesthesia providers.
What is the most safety-critical BSPH fact to know?
Avoiding epinephrine-containing local anesthetic in end-arterial tissue (fingers, toes, nose, ears, penis) is one of the most consistently tested safety points in this domain.
Explore the full BSPH study suite: Glossary, Exam Tips, Exam Day Guide, and Common Mistakes.