CIS Exam Flashcards

Q: What is the HSPA CIS exam pass rate?

The CIS exam pass rate was 66.6% in 2025 (1,259 candidates) and has been declining from a high of about 92.4% in 2018. The drop coincides with a more rigorous, instrument-focused exam built on the 2024 Job Task Analysis. The exam has 150 questions (125 scored plus 25 unscored pretest items) with a 3-hour time limit and a $140 fee. Scoring is criterion-referenced, so HSPA does not publish a fixed percentage cut score.

Q: What are the prerequisites for the CIS exam?

Candidates must hold a current CRCST (Certified Registered Central Service Technician) certification and document at least 200 hours of hands-on sterile processing department experience completed within the past five years and verified by a supervisor. The CIS is an advanced, specialist-level credential, so it builds on the foundational CRCST rather than replacing it. There is no firm sponsorship requirement to sit for the exam.

Q: What topics are on the new 2024 JTA CIS exam?

The exam launched in December 2025 covers six domains: Instrumentation Identification (32%), Inspection/Testing/Integrity & Assembly (20%), Quality & Information Systems (20%), Decontamination Processes (12%), Preparation & Packaging (10%), and Disinfection & Sterilization (6%). Instrumentation Identification is the heaviest domain, so most study time should go to recognizing instruments by specialty, function, material, and marking method.

Q: How is CIS certification maintained?

The CIS credential renews annually. Holders must earn 6 continuing education (CE) credits each year and pay a renewal fee (about $50). Keeping certification active demonstrates ongoing competency in surgical instrument identification, repair, inspection, and quality systems. Allowing it to lapse can require re-examination, so CIS specialists track CEs and renewal deadlines carefully.

Q: What is the primary reference for the CIS exam?

The updated exam is built around the HSPA Sterile Processing Instrument Manual, 2nd Edition (2025), which is the main reference for the 2024 Job Task Analysis blueprint. Candidates should also be comfortable applying manufacturer Instructions for Use (IFU), ANSI/AAMI standards for cleaning and sterilization, and instrument-specific testing methods such as the index card test, dowel rod test, and borescope inspection.

Q: Is the CIS exam the same as the CRCST exam?

No. CRCST is the entry-level sterile processing certification covering broad department operations, while CIS is an advanced specialist credential focused specifically on surgical instruments, their identification, inspection, repair, assembly, and the quality systems around them. CRCST is a prerequisite for CIS, and the two exams have separate content outlines, references, and fees.

Question 1

Hemostat (hemostatic forceps)

Accepted Answer

A clamping instrument with serrated jaws, a ratcheted finger ring handle, and a box lock, used to occlude blood vessels. Common types include Kelly, Crile, Mosquito, and Rochester-Pean, differing by size, jaw length, and serration pattern.

Question 2

Kerrison rongeur

Accepted Answer

A spring-loaded bone-biting instrument with a footplate that slides under bone to punch away small pieces. Primarily a neurosurgical/spinal instrument used to remove bone and disc material near the spinal cord and nerve roots.

Question 3

Retractor (handheld vs self-retaining)

Accepted Answer

An instrument that holds tissue or organs aside to expose the surgical site. Handheld retractors (e.g., Army-Navy, Deaver, Richardson) require an assistant; self-retaining retractors (e.g., Weitlaner, Balfour, Gelpi) hold open by a ratchet or frame.

Question 4

Needle holder (needle driver)

Accepted Answer

A clamping instrument that grips suture needles. It has short, sturdy jaws (often with tungsten carbide inserts and cross-hatched serrations) and a ratchet. Distinguished from a hemostat by its heavier, shorter jaws designed not to nick the needle.

Question 5

Osteotome vs chisel

Accepted Answer

Both cut bone, but an osteotome is beveled (sharpened) on both sides of the blade for splitting bone, while a chisel is beveled on only one side for shaving or paring bone. Recognizing the bevel is a common ID distinction.

Question 6

Rongeur

Accepted Answer

A heavy instrument with sharp, cupped, biting jaws used to cut and remove bone or tough tissue. Single-action rongeurs have one hinge; double-action rongeurs have two hinges for greater mechanical force on dense bone.

Question 7

Forceps: tissue vs dressing

Accepted Answer

Thumb forceps grasp tissue. Tissue forceps have teeth (e.g., Adson with teeth, rat-tooth) to hold tissue securely; dressing/smooth forceps have serrated but toothless tips for handling dressings and delicate tissue without trauma.

Question 8

Cutting scissors by type

Accepted Answer

Mayo scissors (heavy, for tough tissue and suture), Metzenbaum scissors (lighter, longer shanks, for delicate tissue), and suture scissors. Curved blades cut tissue; straight blades cut suture. Type and tip shape are key ID features.

Question 9

Box lock

Accepted Answer

The hinge mechanism where the two halves of a ringed instrument interlock and pivot. It is a critical inspection point: debris, stiffness, cracks, or misalignment at the box lock indicate a defect and require repair or removal from service.

Question 10

Ratchet

Accepted Answer

The interlocking teeth on the finger-ring shanks that lock a clamp closed at set positions. During functionality testing, the ratchet must hold each click without springing open; a slipping ratchet means the instrument cannot maintain clamping force.

Question 11

Jaws and serrations

Accepted Answer

The working tips of a clamp. Serrations (horizontal, longitudinal, or cross-hatched) increase grip. Atraumatic jaws use fine serrations to avoid tissue damage. Worn, misaligned, or non-meeting jaws fail inspection because they will not grip.

Question 12

Shank, finger rings, and tips

Accepted Answer

Anatomy of a ringed instrument: finger rings (where fingers go), shanks (arms from rings to box lock), box lock (hinge), and jaws/tips (working end). Knowing these parts is essential for describing defects and ordering repairs.

Question 13

Tungsten carbide (TC) inserts

Accepted Answer

Hard cutting/gripping inserts bonded into jaws of needle holders and scissors for durability and precision. Industry convention marks TC instruments with gold-colored finger rings or handles, allowing quick visual identification.

Question 14

Titanium instruments

Accepted Answer

About 40% lighter than stainless steel and non-magnetic, ideal for microsurgery and MRI environments. Anodized titanium shows distinctive blue or purple color. It is corrosion-resistant but softer and more costly than stainless steel.

Question 15

Surgical stainless steel grades

Accepted Answer

Martensitic stainless (e.g., 410/420) is hardenable and used for cutting instruments; austenitic stainless (300 series) is more corrosion-resistant and used for non-cutting items. The chromium oxide passive layer protects against corrosion.

Question 16

Passivation

Accepted Answer

A manufacturing finishing process that builds the protective chromium oxide layer on stainless steel, improving corrosion resistance. Damage to this passive layer (scratches, harsh chemicals, saline) is a common cause of staining and pitting.

Question 17

Single-use vs reusable instruments

Accepted Answer

Single-use (disposable) devices are FDA-labeled for one patient and must not be reprocessed unless by a validated reprocessor. Reusable instruments are designed and validated to withstand repeated cleaning and sterilization cycles.

Question 18

Reposable instruments

Accepted Answer

Hybrid devices combining a reusable handle or component with single-use disposable parts. Processing must follow the IFU precisely so the reusable portion is cleaned and sterilized while the single-use portion is discarded.

Question 19

Laser marking vs etching vs taping

Accepted Answer

Methods to identify instruments. Laser marking and chemical etching are preferred because they do not break the surface integrity; acid etching done improperly can corrode. Marking tape is discouraged because it harbors soil and can shed during cycles.

Question 20

Point-of-use treatment (precleaning)

Accepted Answer

Keeping soil moist immediately after surgery (with an enzymatic spray/gel or moist towel) so blood and bioburden do not dry. Dried soil is far harder to remove and can damage instruments, making point-of-use care a key decontamination step.

Question 21

Enzymatic vs neutral detergent cleaners

Accepted Answer

Enzymatic detergents use proteases/lipases to break down organic soil and are used for soaking/precleaning. Neutral-pH detergents are general washing agents. Both must be diluted and used per IFU; wrong pH or concentration can stain or corrode instruments.

Question 22

Water quality in decontamination

Accepted Answer

Utility water is acceptable for initial washing/flushing; critical (treated) water (deionized/RO) is used for final rinse to prevent mineral spotting, staining, and residue. Poor water quality is a leading cause of instrument spotting and corrosion.

Question 23

Ultrasonic cleaning and cavitation

Accepted Answer

An ultrasonic cleaner uses high-frequency sound waves to create tiny imploding bubbles (cavitation) that dislodge fine soil from hard-to-reach areas. Instruments must be open/disassembled, fully submerged, and dissimilar metals kept separate.

Question 24

Cleaning verification (residual soil testing)

Accepted Answer

Objective checks that cleaning was effective, such as ATP bioluminescence tests, protein/hemoglobin residual tests, and visual inspection under magnification. Verification confirms the washer and manual processes are removing bioburden, not just appearing clean.

Question 25

Prion (CJD) decontamination

Accepted Answer

Prions resist routine sterilization, so suspected/confirmed Creutzfeldt-Jakob cases require enhanced protocols: keep instruments moist, special chemical treatment (e.g., sodium hydroxide or hypochlorite), and extended sterilization parameters per facility policy.

Question 26

Lumen and cannulated instrument cleaning

Accepted Answer

Hollow instruments (suctions, cannulated drills, scopes) must be brushed with a correctly sized brush and flushed because soil hides inside the channel. Inadequate lumen cleaning is a common cause of retained bioburden and sterilization failure.

Question 27

Visual inspection under magnification

Accepted Answer

Every instrument is inspected (often with lighted magnification) for cleanliness, corrosion, pitting, cracks, chips, and misalignment. Magnification reveals soil and defects invisible to the naked eye, especially in serrations and box locks.

Question 28

Borescope inspection

Accepted Answer

A thin optical scope inserted into lumens and channels of flexible/rigid scopes and cannulated instruments to inspect interior surfaces for residual soil, scratches, or damage that surface inspection cannot detect.

Question 29

Scissors sharpness: index card / tissue test

Accepted Answer

Sharpness is verified by cutting test media: smaller scissors should cleanly cut a single layer of an index card (or designated test material) near the tips without snagging. Failure indicates dull blades needing sharpening or repair.

Question 30

Dowel rod / pin test for needle holders

Accepted Answer

A functionality test where the needle holder clamps a wooden dowel or test pin and locks on a ratchet position; if the jaws spring open or the dowel turns easily, the holder will not grip a needle and fails inspection.

Question 31

Forceps and jaw alignment check

Accepted Answer

Tips and serrations of forceps and clamps must meet evenly when closed and held to a light source. Light gaps, overriding tips, or misaligned teeth mean the instrument cannot grasp properly and must be repaired or removed.

Question 32

Instrument lubrication (instrument milk)

Accepted Answer

A water-soluble, steam-permeable lubricant applied to box locks and moving parts after cleaning to maintain smooth action and prevent stiffness. It must NOT be oil-based, because mineral oil blocks sterilant from reaching the metal surface.

Question 33

Pitting vs staining vs corrosion

Accepted Answer

Staining is surface discoloration (often removable); pitting is permanent surface erosion that traps soil and harbors bioburden; corrosion is active metal breakdown. Distinguishing them guides whether to clean, repair, or retire the instrument.

Question 34

Preventive maintenance program

Accepted Answer

Scheduled service (sharpening, realignment, replacing inserts, repassivation) that keeps instruments functional and extends life. PM reduces failed sets, intraoperative breakdowns, and emergency repairs.

Question 35

Count sheets and set assembly

Accepted Answer

Trays are assembled to a standardized count sheet that lists each instrument, quantity, and configuration. Following the sheet ensures completeness, correct counts, and consistent set build for the OR and for sterilization validation.

Question 36

Tray weight and density limits

Accepted Answer

Sets should generally not exceed about 25 lb to allow proper drying, sterilant penetration, and ergonomic handling. Overloaded or dense trays cause wet packs and inadequate sterilization.

Question 37

Instrument stringers and positioning

Accepted Answer

Ringed instruments are placed open on a stringer or rack so the box lock and jaws are exposed to the sterilant. Instruments are arranged heaviest on the bottom, concave/cupped items face down, and lumens positioned for steam contact.

Question 38

Peel pouch packaging rules

Accepted Answer

Paper-plastic pouches are used for small, light items. Place the instrument so the tip faces the peelable corner, do not overfill, and seal completely. Double pouching must follow IFU (no folding the inner pouch) so it opens aseptically.

Question 39

Sterilization wrap and sequential wrapping

Accepted Answer

Nonwoven or woven wraps create a sterile barrier. The wrap must be appropriate for the method and weight; envelope or square-fold techniques are used. Holes, snags, or thin spots compromise the barrier and require rewrapping.

Question 40

Rigid sterilization containers

Accepted Answer

Reusable metal containers with valves or filters that protect contents and allow sterilant entry. Each use requires inspecting gaskets, latches, and filters and changing/checking filters per IFU; a damaged gasket breaks the sterile barrier.

Question 41

Heat sealer validation

Accepted Answer

Impulse/continuous heat sealers join pouches with a complete, intact seal. Seal integrity (width, continuity, no channels or burns) is verified routinely because an incomplete seal allows contamination after sterilization.

Question 42

Steam sterilization parameters

Accepted Answer

Steam (moist heat) sterilizes by coagulating proteins; the four parameters are time, temperature, pressure, and saturated steam contact. Common cycles run near 270 to 275 F (132 to 135 C) for prevacuum loads, always per the device IFU.

Question 43

Material compatibility with sterilants

Accepted Answer

Not every instrument tolerates every method: heat-/moisture-sensitive items (some plastics, optics, batteries) need low-temperature methods like hydrogen peroxide gas plasma or vaporized H2O2; the IFU dictates the validated method.

Question 44

Hydrogen peroxide gas plasma sterilization

Accepted Answer

A low-temperature method for heat- and moisture-sensitive devices. It has lumen-length and diameter limits, cannot process cellulose materials (paper, linen, cotton), and requires specific tray and packaging materials per IFU.

Question 45

Ethylene oxide (EtO) sterilization

Accepted Answer

A low-temperature gas method effective for complex, lumened, heat-sensitive devices. It requires a long aeration phase to remove toxic residual gas and is used less now due to safety and turnaround concerns.

Question 46

Biological indicator (BI) vs chemical indicator (CI)

Accepted Answer

A BI contains resistant bacterial spores and directly proves the sterilizer killed microorganisms (the only direct measure of lethality). A CI changes color to show a condition was met but does not prove sterility; both are used together.

Question 47

Instructions for Use (IFU) compliance

Accepted Answer

Manufacturer-validated, device-specific reprocessing directions for cleaning, inspection, lubrication, packaging, and sterilization. IFUs are not optional; following them is the legal and accreditation standard, and they override generic department habits.

Question 48

Loaner instrument management

Accepted Answer

Vendor-supplied sets must arrive with enough lead time to be inventoried, decontaminated, and sterilized on-site before use, accompanied by IFUs and count sheets. They cannot go directly to the OR without full in-house reprocessing.

Question 49

Instrument tracking systems

Accepted Answer

Software (often with unique instrument marking/barcoding) that records each item's location, processing history, repairs, and usage. Tracking supports recalls, productivity metrics (KPIs), set completeness, and documentation for audits.

Question 50

Root cause analysis (RCA) and continuous improvement

Accepted Answer

A structured method to find the underlying cause of a failure (e.g., a wet pack or missing instrument) rather than just the symptom. Paired with Lean/Six Sigma and KPIs, RCA drives corrective action so the same error does not recur.

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