ATI ADULT MEDICAL SURGICAL 2026
COMPREHENSIVE EXAM PREP 100 HIGHLY
CHALLENGING Q AND A WITH DETAILED
RATIONALES AND CRITICAL THINKING
CLINICAL JUDGEMENT SCENARIOS
Question 1
A nurse is caring for a client who is 24 hours postoperative
following a total laryngectomy. Which of the following assessment
findings is the nurse's priority?
A. Incisional pain rated as 7 on a scale of 0 to 10
B. Increased volume of clear, blood-tinged tracheal
secretions
C. Redness and slight edema at the surgical wound margins
D. Tracheostomy cuff pressure maintaining at 20 cm H₂O
CORRECT ANSWER: B
RATiONAlE: Following a total laryngectomy, airway
patency and security are the top nursing priorities using the
Airway-Breathing-Circulation (ABC) framework. An increase in
the volume or viscosity of tracheal secretions can quickly lead to
mucous plugging and airway occlusion. While blood-tinged
secretions are expected early postoperatively, the nurse must
monitor and suction frequently to ensure a patent airway.
Incisional pain, mild localized wound redness, and a cuff
,pressure of 20 cm H₂O (expected range is 20–25 cm H₂O) are
non-urgent findings.
Question 2
A nurse in the emergency department is assessing a client who
has a suspected acute thoracic aortic dissection. Which of the
following clinical manifestations should the nurse expect?
A. Dull, aching chest pain radiating down both arms
B. Sudden, severe "tearing" or "ripping" pain in the chest
and upper back
C. Gradual onset of pleuritic chest pain relieved by leaning
forward
D. Bounding, equal pulses in all four peripheral extremities
CORRECT ANSWER: B
RATiONAlE: An acute thoracic aortic dissection
characteristically presents with an abrupt onset of excruciating,
sharp, "tearing" or "ripping" pain located in the chest, back, or
abdomen. This pain can migrate as the dissection progresses
along the aorta. In contrast, dull aching chest pain is classic for
myocardial infarction, while pain relieved by leaning forward
suggests acute pericarditis. Asymmetric or absent peripheral
pulses—rather than equal, bounding pulses—frequently occur
due to impaired arterial perfusion from the dissection.
Question 3
A nurse is planning care for a client who has a prescription for
continuous mechanical ventilation with positive end-expiratory
pressure (PEEP) at 15 cm H₂O. For which of the following adverse
effects should the nurse monitor most closely?
,A. Hypotension and decreased cardiac output
B. Hypocapnia and respiratory alkalosis
C. Increased urinary output and fluid volume deficit
D. Increased gastrointestinal motility and diarrhea
CORRECT ANSWER: A
RATiONAlE: High levels of PEEP (>10 cm H₂O) increase
intrathoracic pressure, which compresses the vena cava and
decreases venous return to the heart. This reduction in preload
directly drops cardiac output and can cause severe hypotension,
especially in volume-depleted clients. PEEP can cause
hypercapnia rather than hypocapnia if alveoli are
overdistended. It also tends to activate the renin-angiotensin-
aldosterone system, leading to fluid retention and decreased
urinary output rather than fluid deficit, and suppresses rather
than accelerates GI motility.
Question 4
A nurse is reviewing the laboratory results of a client who has
acute pancreatitis. Which of the following findings should the
nurse expect?
A. Serum amylase 85 U/L
B. Serum calcium 7.2 mg/dL
C. Serum lipase 40 U/L
D. Blood glucose 78 mg/dL
CORRECT ANSWER: B
RATiONAlE: Hypocalcemia is a frequent and serious
finding in acute pancreatitis, resulting from fat necrosis where
fatty acids combine with calcium ions (saponification). A calcium
, level of 7.2 mg/dL is below the expected reference range (9.0–
10.5 mg/dL) and requires careful monitoring for tetany. Serum
amylase and lipase become markedly elevated (often three times
the upper limit of normal) during acute pancreatitis.
Hyperglycemia, rather than a normal blood glucose level of 78
mg/dL, occurs due to impaired insulin release from damaged
islet cells.
Question 5
A nurse is preparing to administer an intravenous bolus of regular
insulin to a client who is in diabetic ketoacidosis (DKA). Before
initiating the insulin infusion, the nurse must ensure that which of
the following laboratory values is verified?
A. Serum sodium 136 mEq/L
B. Blood urea nitrogen (BUN) 22 mg/dL
C. Serum potassium 3.7 mEq/L
D. Serum bicarbonate 14 mEq/L
CORRECT ANSWER: C
RATiONAlE: Regular insulin drives potassium into the
intracellular space along with glucose, which will rapidly lower
serum potassium levels. If insulin is administered to a client
whose potassium is already low or low-normal (<3.3 to 3.5
mEq/L), it can precipitate life-threatening cardiac
dysrhythmias. Potassium levels must be verified and corrected to
a safe threshold before insulin therapy begins. Sodium, BUN,
and bicarbonate are monitored closely in DKA, but they do not
dictate the immediate safety threshold for initiating insulin.
Question 6
COMPREHENSIVE EXAM PREP 100 HIGHLY
CHALLENGING Q AND A WITH DETAILED
RATIONALES AND CRITICAL THINKING
CLINICAL JUDGEMENT SCENARIOS
Question 1
A nurse is caring for a client who is 24 hours postoperative
following a total laryngectomy. Which of the following assessment
findings is the nurse's priority?
A. Incisional pain rated as 7 on a scale of 0 to 10
B. Increased volume of clear, blood-tinged tracheal
secretions
C. Redness and slight edema at the surgical wound margins
D. Tracheostomy cuff pressure maintaining at 20 cm H₂O
CORRECT ANSWER: B
RATiONAlE: Following a total laryngectomy, airway
patency and security are the top nursing priorities using the
Airway-Breathing-Circulation (ABC) framework. An increase in
the volume or viscosity of tracheal secretions can quickly lead to
mucous plugging and airway occlusion. While blood-tinged
secretions are expected early postoperatively, the nurse must
monitor and suction frequently to ensure a patent airway.
Incisional pain, mild localized wound redness, and a cuff
,pressure of 20 cm H₂O (expected range is 20–25 cm H₂O) are
non-urgent findings.
Question 2
A nurse in the emergency department is assessing a client who
has a suspected acute thoracic aortic dissection. Which of the
following clinical manifestations should the nurse expect?
A. Dull, aching chest pain radiating down both arms
B. Sudden, severe "tearing" or "ripping" pain in the chest
and upper back
C. Gradual onset of pleuritic chest pain relieved by leaning
forward
D. Bounding, equal pulses in all four peripheral extremities
CORRECT ANSWER: B
RATiONAlE: An acute thoracic aortic dissection
characteristically presents with an abrupt onset of excruciating,
sharp, "tearing" or "ripping" pain located in the chest, back, or
abdomen. This pain can migrate as the dissection progresses
along the aorta. In contrast, dull aching chest pain is classic for
myocardial infarction, while pain relieved by leaning forward
suggests acute pericarditis. Asymmetric or absent peripheral
pulses—rather than equal, bounding pulses—frequently occur
due to impaired arterial perfusion from the dissection.
Question 3
A nurse is planning care for a client who has a prescription for
continuous mechanical ventilation with positive end-expiratory
pressure (PEEP) at 15 cm H₂O. For which of the following adverse
effects should the nurse monitor most closely?
,A. Hypotension and decreased cardiac output
B. Hypocapnia and respiratory alkalosis
C. Increased urinary output and fluid volume deficit
D. Increased gastrointestinal motility and diarrhea
CORRECT ANSWER: A
RATiONAlE: High levels of PEEP (>10 cm H₂O) increase
intrathoracic pressure, which compresses the vena cava and
decreases venous return to the heart. This reduction in preload
directly drops cardiac output and can cause severe hypotension,
especially in volume-depleted clients. PEEP can cause
hypercapnia rather than hypocapnia if alveoli are
overdistended. It also tends to activate the renin-angiotensin-
aldosterone system, leading to fluid retention and decreased
urinary output rather than fluid deficit, and suppresses rather
than accelerates GI motility.
Question 4
A nurse is reviewing the laboratory results of a client who has
acute pancreatitis. Which of the following findings should the
nurse expect?
A. Serum amylase 85 U/L
B. Serum calcium 7.2 mg/dL
C. Serum lipase 40 U/L
D. Blood glucose 78 mg/dL
CORRECT ANSWER: B
RATiONAlE: Hypocalcemia is a frequent and serious
finding in acute pancreatitis, resulting from fat necrosis where
fatty acids combine with calcium ions (saponification). A calcium
, level of 7.2 mg/dL is below the expected reference range (9.0–
10.5 mg/dL) and requires careful monitoring for tetany. Serum
amylase and lipase become markedly elevated (often three times
the upper limit of normal) during acute pancreatitis.
Hyperglycemia, rather than a normal blood glucose level of 78
mg/dL, occurs due to impaired insulin release from damaged
islet cells.
Question 5
A nurse is preparing to administer an intravenous bolus of regular
insulin to a client who is in diabetic ketoacidosis (DKA). Before
initiating the insulin infusion, the nurse must ensure that which of
the following laboratory values is verified?
A. Serum sodium 136 mEq/L
B. Blood urea nitrogen (BUN) 22 mg/dL
C. Serum potassium 3.7 mEq/L
D. Serum bicarbonate 14 mEq/L
CORRECT ANSWER: C
RATiONAlE: Regular insulin drives potassium into the
intracellular space along with glucose, which will rapidly lower
serum potassium levels. If insulin is administered to a client
whose potassium is already low or low-normal (<3.3 to 3.5
mEq/L), it can precipitate life-threatening cardiac
dysrhythmias. Potassium levels must be verified and corrected to
a safe threshold before insulin therapy begins. Sodium, BUN,
and bicarbonate are monitored closely in DKA, but they do not
dictate the immediate safety threshold for initiating insulin.
Question 6
