PERIOPERATIVE NURSING PERIOP 101
COMPREHENSIVE PRACTICE EXAM GUIDE
1. Which of the following continuous monitoring
parameters provides the earliest indicator of a
malignant hyperthermia (MH) crisis in the operating
room?
A) Rapidly rising core body temperature
B) Unexplained increase in end-tidal carbon dioxide
(ETCO₂)
C) Severe generalized muscle rigidity
D) Sudden ventricular tachycardia
Answer: B) Unexplained increase in end-tidal carbon
dioxide (ETCO₂)
Rationale: An unexplained, sudden rise in ETCO₂ is
the most sensitive and earliest indicator of
malignant hyperthermia, reflecting the massive
increase in metabolic production of carbon dioxide.
Temperature elevation is typically a late sign.
2. During a local anesthetic cosmetic procedure, the
patient becomes agitated, reports a metallic taste,
and develops perioral numbness. What is the
immediate priority action?
A) Administer a rapid bolus of IV dantrolene
, B) Stop the administration of the local anesthetic
and prepare for lipid rescue therapy
C) Place the patient in a Trendelenburg position
D) Apply a cooling blanket to prevent hyperthermia
Answer: B) Stop the administration of the local
anesthetic and prepare for lipid rescue therapy
Rationale: Metallic taste, perioral numbness, and
agitation are classic early signs of Local Anesthetic
Systemic Toxicity (LAST). The immediate priority is
to stop the injection/infusion of the drug and
prepare 20% lipid emulsion therapy.
3. According to AORN guidelines, when performing the
surgical skin prep on a patient undergoing an open
abdominal procedure, the perioperative nurse
should clean the site in which manner?
A) Start at the periphery and move inward toward
the incision site
B) Start at the proposed incision line and move
outward toward the periphery
C) Prep the umbilicus last using a separate sponge
D) Use a vigorous back-and-forth friction rub for at
least 5 minutes across the entire abdomen
Answer: B) Start at the proposed incision line and
move outward toward the periphery
, Rationale: Surgical skin preparation should progress
from the cleanest area (the proposed incision site)
outward toward the dirtier peripheral areas to
prevent introducing transient microorganisms into
the surgical wound.
4. Which of the following structural zones of the
surgical suite requires personnel to wear full surgical
attire, including scrub suits, caps, and masks?
A) Unrestricted zone
B) Semi-restricted zone
C) Restricted zone
D) Transition zone
Answer: C) Restricted zone
Rationale: The restricted zone (e.g., individual
operating rooms, clean core) requires full surgical
attire, including a surgical mask, to protect the
sterile field from respiratory droplets.
5. To minimize the risk of intraoperative pressure
injuries, how often should the perioperative nursing
team reassess and document patient positioning
status for prolonged surgeries?
A) Every 30 minutes
B) Every 1 to 2 hours
C) Only at the beginning and end of the procedure
, D) Every 4 hours
Answer: B) Every 1 to 2 hours
Rationale: Best practices and safety guidelines
dictate that for prolonged surgical procedures,
tissue perfusion and position status should be
reassessed regularly, typically every 1 to 2 hours, to
check for shifting or anatomical hazards.
6. What is the primary physiological mechanism by
which a pneumatic tourniquet causes tissue damage
if left inflated beyond the recommended safe time
limit?
A) Venous congestion
B) Ischemic necrosis and microvascular injury
C) Arterial air embolism
D) Local hyperthermia
Answer: B) Ischemic necrosis and microvascular
injury
Rationale: Prolonged inflation of a pneumatic
tourniquet deprives downstream tissues of
oxygenated blood, leading to cellular ischemia,
acidosis, and eventually permanent microvascular
and nerve necrosis if inflation exceeds 1.5 to 2
hours.
COMPREHENSIVE PRACTICE EXAM GUIDE
1. Which of the following continuous monitoring
parameters provides the earliest indicator of a
malignant hyperthermia (MH) crisis in the operating
room?
A) Rapidly rising core body temperature
B) Unexplained increase in end-tidal carbon dioxide
(ETCO₂)
C) Severe generalized muscle rigidity
D) Sudden ventricular tachycardia
Answer: B) Unexplained increase in end-tidal carbon
dioxide (ETCO₂)
Rationale: An unexplained, sudden rise in ETCO₂ is
the most sensitive and earliest indicator of
malignant hyperthermia, reflecting the massive
increase in metabolic production of carbon dioxide.
Temperature elevation is typically a late sign.
2. During a local anesthetic cosmetic procedure, the
patient becomes agitated, reports a metallic taste,
and develops perioral numbness. What is the
immediate priority action?
A) Administer a rapid bolus of IV dantrolene
, B) Stop the administration of the local anesthetic
and prepare for lipid rescue therapy
C) Place the patient in a Trendelenburg position
D) Apply a cooling blanket to prevent hyperthermia
Answer: B) Stop the administration of the local
anesthetic and prepare for lipid rescue therapy
Rationale: Metallic taste, perioral numbness, and
agitation are classic early signs of Local Anesthetic
Systemic Toxicity (LAST). The immediate priority is
to stop the injection/infusion of the drug and
prepare 20% lipid emulsion therapy.
3. According to AORN guidelines, when performing the
surgical skin prep on a patient undergoing an open
abdominal procedure, the perioperative nurse
should clean the site in which manner?
A) Start at the periphery and move inward toward
the incision site
B) Start at the proposed incision line and move
outward toward the periphery
C) Prep the umbilicus last using a separate sponge
D) Use a vigorous back-and-forth friction rub for at
least 5 minutes across the entire abdomen
Answer: B) Start at the proposed incision line and
move outward toward the periphery
, Rationale: Surgical skin preparation should progress
from the cleanest area (the proposed incision site)
outward toward the dirtier peripheral areas to
prevent introducing transient microorganisms into
the surgical wound.
4. Which of the following structural zones of the
surgical suite requires personnel to wear full surgical
attire, including scrub suits, caps, and masks?
A) Unrestricted zone
B) Semi-restricted zone
C) Restricted zone
D) Transition zone
Answer: C) Restricted zone
Rationale: The restricted zone (e.g., individual
operating rooms, clean core) requires full surgical
attire, including a surgical mask, to protect the
sterile field from respiratory droplets.
5. To minimize the risk of intraoperative pressure
injuries, how often should the perioperative nursing
team reassess and document patient positioning
status for prolonged surgeries?
A) Every 30 minutes
B) Every 1 to 2 hours
C) Only at the beginning and end of the procedure
, D) Every 4 hours
Answer: B) Every 1 to 2 hours
Rationale: Best practices and safety guidelines
dictate that for prolonged surgical procedures,
tissue perfusion and position status should be
reassessed regularly, typically every 1 to 2 hours, to
check for shifting or anatomical hazards.
6. What is the primary physiological mechanism by
which a pneumatic tourniquet causes tissue damage
if left inflated beyond the recommended safe time
limit?
A) Venous congestion
B) Ischemic necrosis and microvascular injury
C) Arterial air embolism
D) Local hyperthermia
Answer: B) Ischemic necrosis and microvascular
injury
Rationale: Prolonged inflation of a pneumatic
tourniquet deprives downstream tissues of
oxygenated blood, leading to cellular ischemia,
acidosis, and eventually permanent microvascular
and nerve necrosis if inflation exceeds 1.5 to 2
hours.
