NIFA Perioperative Quiz 2026 (Solved) |Questions
| Verified Answers with Rationales | Grade A
Introduction
This NIFA Perioperative Quiz practice test is designed for surgical first assistants, perioperative
nurses, and surgical technology students preparing for NIFA certification examinations for the
2026 academic year. The 200 questions are based on verified exam materials from multiple
sources and cover all critical domains required for perioperative practice, including surgical
patient positioning, aseptic technique and sterile gloving, suture selection and characteristics,
anesthesia monitoring and complications, surgical instrumentation, specimen management,
count procedures and retained surgical items, infection control and sterilization, medication
administration (including LAST treatment, PONV), fire safety in the OR, malignant hyperthermia,
latex allergy protocols, wound closure and healing, surgical dressings, and legal/ethical
considerations including informed consent and advance directives. Content aligns with
Alexander's Care of the Patient in Surgery (15th/16th editions), AORN guidelines, and current
perioperative best practices. Each question includes a detailed rationale explaining the correct
answer and references to authoritative sources to reinforce learning and ensure exam readiness.
DOMAIN 1: SUTURE SELECTION & CHARACTERISTICS (25 Questions)
Question 1 When selecting suture material for a surgical procedure, which of the following is
NOT a valid consideration?
• A. Type of surgical procedure being performed
• B. Tissue being reapproximated
• C. Type of reapproximation required
• D. Scrub person's personal preference
Correct Answer: D
Rationale: Suture selection is based on scientific principles and patient needs, not personal
preference. Valid considerations include the type of procedure, the specific tissue being
sutured, and the method of reapproximation needed. The scrub person's preference has no
bearing on suture selection, which must be determined by the surgeon based on tissue
characteristics, healing requirements, and tensile strength needs.
,Question 2 Which nonabsorbable suture material offers the greatest tensile strength compared
to other nonabsorbable sutures?
• A. Silk
• B. Nylon
• C. Polyester
• D. Polypropylene
Correct Answer: C
Rationale: Polyester sutures (such as Ethibond or Dacron) provide superior tensile strength
compared to other nonabsorbable sutures. This makes them ideal for procedures requiring
long-term wound support, such as cardiac surgery, orthopedic procedures, and hernia repairs.
Polyester maintains approximately 70% of its tensile strength at 2 years post-implantation.
Question 3 Among absorbable sutures, which material demonstrates the best tensile strength
profile?
• A. Plain gut
• B. Chromic gut
• C. Polyglycolic acid (PGA)
• D. Polydioxanone (PDS)
Correct Answer: D
Rationale: Polydioxanone (PDS) is a synthetic monofilament absorbable suture that provides
the best tensile strength among absorbable sutures. It retains approximately 70% of tensile
strength at 2 weeks, 60% at 4 weeks, and 25% at 6 weeks. This extended strength retention
makes PDS ideal for tissues requiring prolonged support, such as fascial closures and pediatric
cardiovascular surgery.
Question 4 Which characteristic is considered ideal for suture handling?
• A. High memory (stiffness)
• B. Ease of tying
• C. High tissue drag
, • D. Rapid absorption in all tissues
Correct Answer: B
Rationale: Ideal suture handling characteristics include ease of tying, which allows the surgeon
to place secure knots with minimal effort. High memory (stiffness) makes tying difficult and can
lead to knot unraveling. Low tissue drag is preferred to minimize tissue trauma during passage.
The absorption rate should be appropriate for the tissue being repaired, not necessarily rapid
for all applications.
Question 5 What does the term "swaged suture" refer to?
• A. A suture that has been soaked in antibiotic solution
• B. A manufacturing process connecting suture thread to needle
• C. A suture with multiple strands twisted together
• D. A suture pre-tied in a specific configuration
Correct Answer: B
Rationale: Swaged sutures are manufactured by compressing the suture material into a hollow
needle end, creating a seamless connection between needle and thread. This eliminates the
need for threading the needle eye and reduces tissue trauma since there is no double strand of
suture material passing through tissue. The term "swage" refers to the mechanical compression
process used to join the components.
Question 6 Which suture material is most appropriate for intestinal anastomosis and
demonstrates multiple filaments braided together?
• A. Nylon
• B. Polypropylene
• C. Silk
• D. Stainless steel
Correct Answer: C
Rationale: Silk suture is a natural, nonabsorbable, braided multifilament suture that has been
traditionally used for intestinal anastomosis. It consists of multiple filaments braided together,
, providing excellent handling characteristics and knot security. When silk absorbs tissue fluids,
the knot actually tightens, improving security. Silk retains approximately 50% of its tensile
strength at 6 months and is completely absorbed in 1-2 years.
Question 7 What happens to a silk suture knot when the thread absorbs tissue fluids?
• A. It loosens significantly
• B. It tightens
• C. It dissolves completely
• D. It becomes radioactive
Correct Answer: B
Rationale: Silk sutures have the unique characteristic of swelling when they absorb tissue fluids.
This swelling causes the knot to tighten, actually improving knot security over the first several
days post-implantation. This is one reason silk was historically popular for gastrointestinal
anastomoses, though synthetic alternatives are now more commonly used.
Question 8 How long does silk suture generally retain its tensile strength?
• A. 1-2 weeks
• B. 1-2 months
• C. Approximately 1 year
• D. Indefinitely (permanent)
Correct Answer: C
Rationale: Silk is classified as nonabsorbable but is actually slowly absorbed by the body. It
retains approximately 50% of its original tensile strength at 6 months and is completely
absorbed within 1-2 years. This gradual absorption profile makes it suitable for tissues that heal
relatively quickly but need support during the initial healing phase.
Question 9 What is the primary characteristic that determines the "tissue reaction" of a suture
material?
• A. Color of the suture
| Verified Answers with Rationales | Grade A
Introduction
This NIFA Perioperative Quiz practice test is designed for surgical first assistants, perioperative
nurses, and surgical technology students preparing for NIFA certification examinations for the
2026 academic year. The 200 questions are based on verified exam materials from multiple
sources and cover all critical domains required for perioperative practice, including surgical
patient positioning, aseptic technique and sterile gloving, suture selection and characteristics,
anesthesia monitoring and complications, surgical instrumentation, specimen management,
count procedures and retained surgical items, infection control and sterilization, medication
administration (including LAST treatment, PONV), fire safety in the OR, malignant hyperthermia,
latex allergy protocols, wound closure and healing, surgical dressings, and legal/ethical
considerations including informed consent and advance directives. Content aligns with
Alexander's Care of the Patient in Surgery (15th/16th editions), AORN guidelines, and current
perioperative best practices. Each question includes a detailed rationale explaining the correct
answer and references to authoritative sources to reinforce learning and ensure exam readiness.
DOMAIN 1: SUTURE SELECTION & CHARACTERISTICS (25 Questions)
Question 1 When selecting suture material for a surgical procedure, which of the following is
NOT a valid consideration?
• A. Type of surgical procedure being performed
• B. Tissue being reapproximated
• C. Type of reapproximation required
• D. Scrub person's personal preference
Correct Answer: D
Rationale: Suture selection is based on scientific principles and patient needs, not personal
preference. Valid considerations include the type of procedure, the specific tissue being
sutured, and the method of reapproximation needed. The scrub person's preference has no
bearing on suture selection, which must be determined by the surgeon based on tissue
characteristics, healing requirements, and tensile strength needs.
,Question 2 Which nonabsorbable suture material offers the greatest tensile strength compared
to other nonabsorbable sutures?
• A. Silk
• B. Nylon
• C. Polyester
• D. Polypropylene
Correct Answer: C
Rationale: Polyester sutures (such as Ethibond or Dacron) provide superior tensile strength
compared to other nonabsorbable sutures. This makes them ideal for procedures requiring
long-term wound support, such as cardiac surgery, orthopedic procedures, and hernia repairs.
Polyester maintains approximately 70% of its tensile strength at 2 years post-implantation.
Question 3 Among absorbable sutures, which material demonstrates the best tensile strength
profile?
• A. Plain gut
• B. Chromic gut
• C. Polyglycolic acid (PGA)
• D. Polydioxanone (PDS)
Correct Answer: D
Rationale: Polydioxanone (PDS) is a synthetic monofilament absorbable suture that provides
the best tensile strength among absorbable sutures. It retains approximately 70% of tensile
strength at 2 weeks, 60% at 4 weeks, and 25% at 6 weeks. This extended strength retention
makes PDS ideal for tissues requiring prolonged support, such as fascial closures and pediatric
cardiovascular surgery.
Question 4 Which characteristic is considered ideal for suture handling?
• A. High memory (stiffness)
• B. Ease of tying
• C. High tissue drag
, • D. Rapid absorption in all tissues
Correct Answer: B
Rationale: Ideal suture handling characteristics include ease of tying, which allows the surgeon
to place secure knots with minimal effort. High memory (stiffness) makes tying difficult and can
lead to knot unraveling. Low tissue drag is preferred to minimize tissue trauma during passage.
The absorption rate should be appropriate for the tissue being repaired, not necessarily rapid
for all applications.
Question 5 What does the term "swaged suture" refer to?
• A. A suture that has been soaked in antibiotic solution
• B. A manufacturing process connecting suture thread to needle
• C. A suture with multiple strands twisted together
• D. A suture pre-tied in a specific configuration
Correct Answer: B
Rationale: Swaged sutures are manufactured by compressing the suture material into a hollow
needle end, creating a seamless connection between needle and thread. This eliminates the
need for threading the needle eye and reduces tissue trauma since there is no double strand of
suture material passing through tissue. The term "swage" refers to the mechanical compression
process used to join the components.
Question 6 Which suture material is most appropriate for intestinal anastomosis and
demonstrates multiple filaments braided together?
• A. Nylon
• B. Polypropylene
• C. Silk
• D. Stainless steel
Correct Answer: C
Rationale: Silk suture is a natural, nonabsorbable, braided multifilament suture that has been
traditionally used for intestinal anastomosis. It consists of multiple filaments braided together,
, providing excellent handling characteristics and knot security. When silk absorbs tissue fluids,
the knot actually tightens, improving security. Silk retains approximately 50% of its tensile
strength at 6 months and is completely absorbed in 1-2 years.
Question 7 What happens to a silk suture knot when the thread absorbs tissue fluids?
• A. It loosens significantly
• B. It tightens
• C. It dissolves completely
• D. It becomes radioactive
Correct Answer: B
Rationale: Silk sutures have the unique characteristic of swelling when they absorb tissue fluids.
This swelling causes the knot to tighten, actually improving knot security over the first several
days post-implantation. This is one reason silk was historically popular for gastrointestinal
anastomoses, though synthetic alternatives are now more commonly used.
Question 8 How long does silk suture generally retain its tensile strength?
• A. 1-2 weeks
• B. 1-2 months
• C. Approximately 1 year
• D. Indefinitely (permanent)
Correct Answer: C
Rationale: Silk is classified as nonabsorbable but is actually slowly absorbed by the body. It
retains approximately 50% of its original tensile strength at 6 months and is completely
absorbed within 1-2 years. This gradual absorption profile makes it suitable for tissues that heal
relatively quickly but need support during the initial healing phase.
Question 9 What is the primary characteristic that determines the "tissue reaction" of a suture
material?
• A. Color of the suture
