Barkley 3Ps Review Exam 300 Actual Questions And
Correct Answers With Rationale Latest Update
Already Graded A+ Assured Pass
Question 1
A patient presents with acute chest pain that worsens with inspiration
and is relieved by leaning forward. A pericardial friction rub is
auscultated. Which pathophysiological process is most likely occurring?
A) Myocardial ischemia
B) Pericardial inflammation
C) Pulmonary embolism
D) Aortic dissection
Answer: B) Pericardial inflammation
Explanation: Pericarditis is characterized by inflammation of the
pericardial sac, causing chest pain that worsens with inspiration
and is relieved by leaning forward. A pericardial friction rub is a
classic finding. Myocardial ischemia pain does not typically change
with position, pulmonary embolism presents with dyspnea and
hypoxia, and aortic dissection presents with tearing pain radiating
to the back.
,Question 2
A patient with type 2 diabetes develops progressive peripheral
neuropathy. Which mechanism best explains this complication?
A) Autoimmune destruction of pancreatic beta cells
B) Osmotic damage from sorbitol accumulation in nerve cells
C) Acute inflammatory demyelination of peripheral nerves
D) Ischemic necrosis from macrovascular disease
Answer: B) Osmotic damage from sorbitol accumulation in nerve
cells
Explanation: In diabetes, hyperglycemia leads to accumulation of
sorbitol within nerve cells via the polyol pathway, causing osmotic
damage and impaired nerve function. This explains the progressive
nature of diabetic peripheral neuropathy. Autoimmune destruction
is seen in type 1 diabetes, acute inflammatory demyelination is seen
in Guillain-Barré syndrome, and macrovascular disease affects
larger vessels.
Question 3
Which acid-base disturbance is most commonly associated with severe
diarrhea?
A) Respiratory acidosis
B) Respiratory alkalosis
C) Metabolic acidosis
D) Metabolic alkalosis
,Answer: C) Metabolic acidosis
Explanation: Severe diarrhea causes loss of bicarbonate-rich
intestinal fluid, leading to metabolic acidosis. The loss of base
results in a decreased serum bicarbonate and lowered pH.
Respiratory acidosis results from hypoventilation, respiratory
alkalosis from hyperventilation, and metabolic alkalosis from loss of
acid or excess base.
Question 4
A patient with chronic kidney disease has a serum potassium of 6.8
mEq/L. Which ECG change would the provider expect?
A) Flattened T waves
B) Prominent U waves
C) Peaked T waves
D) Prolonged QT interval
Answer: C) Peaked T waves
Explanation: Peaked or tented T waves are characteristic ECG
findings in hyperkalemia. Flattened T waves and prominent U waves
are associated with hypokalemia. Prolonged QT interval is
associated with hypocalcemia or certain medications.
Question 5
Which cellular adaptation is characterized by an increase in cell size but
, not cell number?
A) Hyperplasia
B) Hypertrophy
C) Metaplasia
D) Dysplasia
Answer: B) Hypertrophy
Explanation: Hypertrophy is an increase in cell size without an
increase in cell number. Hyperplasia involves increased cell number.
Metaplasia involves replacement of one cell type with another.
Dysplasia involves abnormal cell growth and maturation.
Question 6
A patient is diagnosed with syndrome of inappropriate antidiuretic
hormone (SIADH). Which laboratory finding is expected?
A) Hypernatremia and increased serum osmolality
B) Hyponatremia and decreased serum osmolality
C) Hyperkalemia and decreased urine osmolality
D) Hypokalemia and increased urine osmolality
Answer: B) Hyponatremia and decreased serum osmolality
Explanation: SIADH results in excessive ADH release, causing water
retention and dilutional hyponatremia with decreased serum
osmolality. Urine osmolality is inappropriately elevated.
Hypernatremia is associated with diabetes insipidus.
Correct Answers With Rationale Latest Update
Already Graded A+ Assured Pass
Question 1
A patient presents with acute chest pain that worsens with inspiration
and is relieved by leaning forward. A pericardial friction rub is
auscultated. Which pathophysiological process is most likely occurring?
A) Myocardial ischemia
B) Pericardial inflammation
C) Pulmonary embolism
D) Aortic dissection
Answer: B) Pericardial inflammation
Explanation: Pericarditis is characterized by inflammation of the
pericardial sac, causing chest pain that worsens with inspiration
and is relieved by leaning forward. A pericardial friction rub is a
classic finding. Myocardial ischemia pain does not typically change
with position, pulmonary embolism presents with dyspnea and
hypoxia, and aortic dissection presents with tearing pain radiating
to the back.
,Question 2
A patient with type 2 diabetes develops progressive peripheral
neuropathy. Which mechanism best explains this complication?
A) Autoimmune destruction of pancreatic beta cells
B) Osmotic damage from sorbitol accumulation in nerve cells
C) Acute inflammatory demyelination of peripheral nerves
D) Ischemic necrosis from macrovascular disease
Answer: B) Osmotic damage from sorbitol accumulation in nerve
cells
Explanation: In diabetes, hyperglycemia leads to accumulation of
sorbitol within nerve cells via the polyol pathway, causing osmotic
damage and impaired nerve function. This explains the progressive
nature of diabetic peripheral neuropathy. Autoimmune destruction
is seen in type 1 diabetes, acute inflammatory demyelination is seen
in Guillain-Barré syndrome, and macrovascular disease affects
larger vessels.
Question 3
Which acid-base disturbance is most commonly associated with severe
diarrhea?
A) Respiratory acidosis
B) Respiratory alkalosis
C) Metabolic acidosis
D) Metabolic alkalosis
,Answer: C) Metabolic acidosis
Explanation: Severe diarrhea causes loss of bicarbonate-rich
intestinal fluid, leading to metabolic acidosis. The loss of base
results in a decreased serum bicarbonate and lowered pH.
Respiratory acidosis results from hypoventilation, respiratory
alkalosis from hyperventilation, and metabolic alkalosis from loss of
acid or excess base.
Question 4
A patient with chronic kidney disease has a serum potassium of 6.8
mEq/L. Which ECG change would the provider expect?
A) Flattened T waves
B) Prominent U waves
C) Peaked T waves
D) Prolonged QT interval
Answer: C) Peaked T waves
Explanation: Peaked or tented T waves are characteristic ECG
findings in hyperkalemia. Flattened T waves and prominent U waves
are associated with hypokalemia. Prolonged QT interval is
associated with hypocalcemia or certain medications.
Question 5
Which cellular adaptation is characterized by an increase in cell size but
, not cell number?
A) Hyperplasia
B) Hypertrophy
C) Metaplasia
D) Dysplasia
Answer: B) Hypertrophy
Explanation: Hypertrophy is an increase in cell size without an
increase in cell number. Hyperplasia involves increased cell number.
Metaplasia involves replacement of one cell type with another.
Dysplasia involves abnormal cell growth and maturation.
Question 6
A patient is diagnosed with syndrome of inappropriate antidiuretic
hormone (SIADH). Which laboratory finding is expected?
A) Hypernatremia and increased serum osmolality
B) Hyponatremia and decreased serum osmolality
C) Hyperkalemia and decreased urine osmolality
D) Hypokalemia and increased urine osmolality
Answer: B) Hyponatremia and decreased serum osmolality
Explanation: SIADH results in excessive ADH release, causing water
retention and dilutional hyponatremia with decreased serum
osmolality. Urine osmolality is inappropriately elevated.
Hypernatremia is associated with diabetes insipidus.
