Understanding Surgical Procedures

Tailoring Your Role as a Surgical Technologist or Sterile Processing Technician
Welcome to the Operating Room (OR) and the Sterile Processing Department (SPD)! If you are a new Surgical Technologist (ST), a new Sterile Processing Technician (SPT), or someone aspiring to join these vital ranks, you are entering a field of incredible importance and complexity.
This article is designed to give you a foundational understanding of what surgery is, why it exists, and the general structure of a surgical procedure. As an ST or an SPT, you are the backbone of patient safety—the expert on sterility and instrumentation. Understanding the "why" and "how" of surgery will elevate your performance from good to essential.
Part 1: The Concept of Surgery—The "Why"
At its core, surgery is a controlled, therapeutic injury performed by a medical professional to diagnose, treat, or prevent a disease or injury. It’s an intervention used when less-invasive methods, like medication or lifestyle changes, are either insufficient or impossible.
The Benefits of Surgical Intervention
Surgery exists because it offers definitive solutions to complex medical problems. The major benefits generally fall into four categories:
- Curative: Removing diseased or damaged tissue to cure a condition (e.g., removing a cancerous tumor, taking out an infected appendix).
- Repair/Restorative: Fixing damaged structures to restore function (e.g., repairing a broken bone, replacing a damaged heart valve).
- Diagnostic: Obtaining tissue or organ samples to determine a diagnosis (e.g., performing a biopsy to identify cancer).
- Palliative: Relieving painful or debilitating symptoms when a cure is not possible, improving the patient’s quality of life (e.g., placing a stent to relieve an obstruction).
As a Surgical/Sterile technician, every instrument you clean, wrap, sterilize, or pass has a direct impact on achieving these outcomes.
Part 2: The General Structure of a Surgical Procedure
Regardless of the specialty, every surgical procedure follows a predictable and crucial path. Understanding this flow is key for both the ST, who is the surgeon's right hand, and the SPT, who ensures the right tools are available at the right time.
1. The Preoperative Phase (Before Incision)
This phase is defined by preparation and verification.
- For the SPT: This is your busiest time, ensuring the correct case carts are assembled, all specialized instruments (like robotic arms, drills, or scopes) are ready, sterilized, and delivered to the OR. You verify counts inside trays and functionality before the case starts.
- For the ST: You are setting up the sterile field. This involves meticulous hand scrubbing, donning sterile attire, preparing the back table and Mayo stand, and verifying the instrument count with the circulating nurse. The Time Out is the final, critical check before incision, where the entire team confirms the patient, site, and procedure.
2. The Intraoperative Phase (During the Procedure)
This is the execution phase, where the patient is under anesthesia and the surgical work occurs.
- For the ST: You maintain the sterile field, anticipate the surgeon's needs, pass instruments, manage specimens, and maintain meticulous counts of sponges, sharps, and instruments. Your focus is on anticipation, communication, and sterile technique.
- For the SPT: While not in the room, you are on standby. You may be flash-sterilizing (Immediate Use Steam Sterilization), pulling specialized supplies, or preparing for the next case—always thinking ahead.
3. The Postoperative Phase (After the Procedure)
Once the final suture is placed and the patient is stable, the focus shifts to case completion, recovery, and immediate instrument reprocessing.
- For the ST: The final instrument, sponge, and sharp count is completed and verified as correct. You assist with the application of dressings and prepare the room for the patient's transfer.
- For the SPT (The Critical Role): Immediately after the case, the ST or the circulator will place the dirty instruments in an appropriate transport bin and/or cart. Your role begins with decontamination—the single most critical step in sterile processing. Meticulous cleaning, following manufacturer's instructions for use (IFU), disassembly, washing, rinsing, and drying are paramount to prevent surgical site infections. Without proper cleaning & decontamination, sterilization is impossible.
Part 3: What to Know About Different Procedure Types
Not all surgery is created equal. Your role as a tech will change dramatically depending on the surgical specialty. Here are a few examples and what they mean for you:
Procedure Types
Surgical Specialty |
Technician Focus & Key Instrument Differences |
|---|---|
| Orthopedics (Ortho) | Impact and Implants. Cases are often long and involve heavy instrumentation (mallets, osteotomes, drills, reamers). STs must manage massive trays and many implants (screws, plates, rods). SPTs must meticulously clean serrations, cannulas, and instrument internal channels, especially those used for bone. |
| Neurosurgery (Neuro) | Delicate and Precise. Instrumentation is often extremely small, delicate, and specialized for microsurgery (fine scissors, micro-forceps, long-handled instruments). STs must use extreme care when handling. SPTs must handle these instruments with incredible care, using specialized containers to prevent damage during cleaning and sterilization. |
| Cardiovascular/Thoracic | Specialized Equipment. Procedures often involve a perfusion team (heart-lung machine) and specialized clamping instruments (Satinsky, Cooley, Bulldog clamps). STs need to understand graft materials and heparinized fluids. SPTs must ensure cannulas and specialized heart clamps are pristine and properly assembled. |
| General Surgery | Broad Range. This covers anything from appendectomies and hernia repairs to bowel resections. Instrument sets are generally the most standardized, but STs must be prepared for unexpected deviations. SPTs often process the highest volume of instruments in this category. |
| Minimally Invasive (Laparoscopic/Robotic) | Optics and Sleeves. Procedures use smaller incisions and involve specialized scopes, cameras, sleeves, and insufflation equipment. STs must master cord and line management. SPTs must disassemble, clean, and properly lubricate scopes and robotic instruments according to IFU to prevent breakdown. |
Elective vs. Emergent
Understanding the scheduling is also critical:
- Elective Procedures: These are planned in advance (e.g., knee replacement, scheduled tumor removal). This allows SPTs ample time for processing and STs ample time for case preparation and room setup.
- Emergent Procedures: These are unscheduled and life-threatening (e.g., trauma, ruptured appendix). For both STs and SPTs, this demands immediate action, rapid turnover, and efficient communication to get the necessary instruments to the OR now.
Conclusion: You are Patient Safety!
The roles of the Surgical Technologist and the Sterile Processing Technician are some of the most detail-oriented and patient-critical positions in healthcare.
- For the ST: Mastering sterile technique, anticipating the next steps, and being the unwavering guardian of the sterile field directly affects the success of the procedure.
- For the SPT: Your expertise in decontamination, assembly, and sterilization is the primary defense against infection. You protect the patient and the multimillion-dollar investment in surgical tools.
As you embark on or continue your career, remember that true mastery comes from not just doing the job, but understanding the why behind every procedure and every instrument you handle. Your diligence is patient safety in action.
If you have an interest in becoming either a Surgical Technologist or a Sterile Processing Technician, check out Preppy which is an online, flexible, affordable, and highly sought after certificate training program. With Preppy you can work towards a new career on your time as fast or slow paced as you need. Preppy also provides you with a hands on externship at the end of your program ensuring you get the absolute best training to prepare you for being hired as soon as possible.
Share
Let customers speak for us
from 271 reviewsJust passed my CRCST thanks to Sterile Guy! Super helpful questions and format were on point. Highly recommend for prep!
I love the practice exam everything comes straight from the book this is by far the best practice test I have taken
I bought the CER practice test the day before my exam. I didn’t know what to expect but surprisingly the practice test covered the same material that’s on the CER exam. Honestly if I didn’t buy the practice test I wouldn’t have passed. Thanks to The Sterile Guy I’m CER certified!
I love the flash cards! Helps me retain the information a lot better.
Such a great way to get yourself ready for the CIS exam. I used these practice test and was able to pass the exam on the first try. Thank you On to CHL next.
All of the information is easy to follow and easily accessed. Ive already referred a sibling who is looking to get in the field as well
I am still studying to take the exam! So far I love the materials. I am taking my time studying but I can’t wait to take it soon just so I can see if the study guide here are helpful for the exam. I will leave another review after I take the exam soon.
This bundle I bought is very helpful and is definitely helping me prepare for the test. I just keep retake the practice exam until I know I’m ready but definitely one of the best practices test and bundle out here.
Passed the exam and got certified as CHL after reviewing your course for a week ... I got some 20 to 22 questions from your content in the exam out of 150 questions... not bad ...
Used the practice questions and passed my sterile processing certification easy!
I literally took my test twice and wasn’t able to pass I almost gave up but I said let me try out this guy that all
The techs been telling me course , and I passed finally !! I would definitely recommend this course.
I really enjoy studying on the Sterile Guy page, all the information that is available on here is Fantastic! Waiting to get my test date and when I do I’ll be back to let you know how well this site is!! Thanks
Thank you sterile guy!I saw some of your questions on the exam.Definitely a huge help
Easy to understand and helpful to prepare CRCST Test.