,1. A patient with chronic obstructive pulmonary disease (COPD) is being assessed for
complications related to chronic CO₂ retention. Which acid-base imbalance is most commonly
associated with this condition?
A) Acute respiratory alkalosis
B) Chronic metabolic acidosis
C) Chronic respiratory acidosis
D) Compensated metabolic alkalosis
Correct Answer: Chronic respiratory acidosis
Rationale: COPD causes impaired alveolar ventilation, leading to CO₂ retention (hypercapnia)
and a subsequent decrease in pH, resulting in chronic respiratory acidosis . The kidneys may
partially compensate by retaining bicarbonate, but the primary disturbance is respiratory. Acute
respiratory alkalosis is associated with hyperventilation, not CO₂ retention.
2. A nurse is assessing a patient with a suspected tension pneumothorax. Which physical finding
is most indicative of this life-threatening condition?
A) Diminished breath sounds on the affected side
B) Subcutaneous emphysema around the chest
C) Tracheal deviation away from the affected side
D) Increased tactile fremitus over the lung fields
Correct Answer: Tracheal deviation away from the affected side
Rationale: Tension pneumothorax causes a buildup of air in the pleural space, increasing
intrathoracic pressure and shifting mediastinal structures, including the trachea, toward the
opposite side . This is a critical emergency sign. Diminished breath sounds may occur in any
pneumothorax, but tracheal deviation indicates tension physiology requiring immediate needle
decompression.
,3. A patient is diagnosed with left-sided heart failure. Which assessment findings are most
consistent with the backward effects of this condition?
A) Peripheral edema and jugular venous distention
B) Crackles in the lungs, cough, and dyspnea
C) Hepatomegaly and ascites
D) Cool extremities and weak peripheral pulses
Correct Answer: Crackles in the lungs, cough, and dyspnea
Rationale: Left-sided heart failure results in the left ventricle's inability to pump blood
effectively, causing blood to back up into the pulmonary circulation . This leads to pulmonary
congestion, manifested as crackles, cough, and dyspnea. Peripheral edema and JVD are signs of
right-sided heart failure .
4. A patient with a history of smoking presents with a chronic productive cough and recurrent
respiratory infections. Which condition is most consistent with these manifestations?
A) Emphysema
B) Chronic bronchitis
C) Asthma
D) Sarcoidosis
Correct Answer: Chronic bronchitis
Rationale: Chronic bronchitis is characterized by a chronic productive cough and recurrent
infections, often due to smoking or chemical exposure . Emphysema presents primarily with
dyspnea and a barrel chest, with minimal cough . Asthma is characterized by reversible
bronchoconstriction and wheezing.
, 5. A patient with suspected tuberculosis (TB) is being evaluated. Which diagnostic test provides
definitive confirmation of active infection?
A) Chest X-ray showing infiltrates
B) Positive tuberculin skin test (TST)
C) Sputum culture showing acid-fast bacilli
D) Elevated white blood cell count
Correct Answer: Sputum culture showing acid-fast bacilli
Rationale: A sputum culture that identifies Mycobacterium tuberculosis (acid-fast bacilli)
provides definitive confirmation of active TB infection and allows for susceptibility testing . A
chest X-ray can suggest TB, and a TST indicates exposure but cannot distinguish active from
latent infection.
6. A patient with right-sided heart failure is being assessed for signs of systemic venous
congestion. Which cluster of findings is most characteristic of this condition?
A) Orthopnea, paroxysmal nocturnal dyspnea, and cough
B) Crackles, frothy sputum, and tachypnea
C) Jugular venous distention, peripheral edema, and hepatosplenomegaly
D) Angina, syncope, and low systolic blood pressure
Correct Answer: Jugular venous distention, peripheral edema, and hepatosplenomegaly
Rationale: Right-sided heart failure occurs when the right ventricle cannot pump blood forward,
causing blood to back up into the systemic venous system . This manifests as jugular venous
distention (JVD), peripheral edema, and hepatosplenomegaly. Crackles and dyspnea are signs of
left-sided failure .
complications related to chronic CO₂ retention. Which acid-base imbalance is most commonly
associated with this condition?
A) Acute respiratory alkalosis
B) Chronic metabolic acidosis
C) Chronic respiratory acidosis
D) Compensated metabolic alkalosis
Correct Answer: Chronic respiratory acidosis
Rationale: COPD causes impaired alveolar ventilation, leading to CO₂ retention (hypercapnia)
and a subsequent decrease in pH, resulting in chronic respiratory acidosis . The kidneys may
partially compensate by retaining bicarbonate, but the primary disturbance is respiratory. Acute
respiratory alkalosis is associated with hyperventilation, not CO₂ retention.
2. A nurse is assessing a patient with a suspected tension pneumothorax. Which physical finding
is most indicative of this life-threatening condition?
A) Diminished breath sounds on the affected side
B) Subcutaneous emphysema around the chest
C) Tracheal deviation away from the affected side
D) Increased tactile fremitus over the lung fields
Correct Answer: Tracheal deviation away from the affected side
Rationale: Tension pneumothorax causes a buildup of air in the pleural space, increasing
intrathoracic pressure and shifting mediastinal structures, including the trachea, toward the
opposite side . This is a critical emergency sign. Diminished breath sounds may occur in any
pneumothorax, but tracheal deviation indicates tension physiology requiring immediate needle
decompression.
,3. A patient is diagnosed with left-sided heart failure. Which assessment findings are most
consistent with the backward effects of this condition?
A) Peripheral edema and jugular venous distention
B) Crackles in the lungs, cough, and dyspnea
C) Hepatomegaly and ascites
D) Cool extremities and weak peripheral pulses
Correct Answer: Crackles in the lungs, cough, and dyspnea
Rationale: Left-sided heart failure results in the left ventricle's inability to pump blood
effectively, causing blood to back up into the pulmonary circulation . This leads to pulmonary
congestion, manifested as crackles, cough, and dyspnea. Peripheral edema and JVD are signs of
right-sided heart failure .
4. A patient with a history of smoking presents with a chronic productive cough and recurrent
respiratory infections. Which condition is most consistent with these manifestations?
A) Emphysema
B) Chronic bronchitis
C) Asthma
D) Sarcoidosis
Correct Answer: Chronic bronchitis
Rationale: Chronic bronchitis is characterized by a chronic productive cough and recurrent
infections, often due to smoking or chemical exposure . Emphysema presents primarily with
dyspnea and a barrel chest, with minimal cough . Asthma is characterized by reversible
bronchoconstriction and wheezing.
, 5. A patient with suspected tuberculosis (TB) is being evaluated. Which diagnostic test provides
definitive confirmation of active infection?
A) Chest X-ray showing infiltrates
B) Positive tuberculin skin test (TST)
C) Sputum culture showing acid-fast bacilli
D) Elevated white blood cell count
Correct Answer: Sputum culture showing acid-fast bacilli
Rationale: A sputum culture that identifies Mycobacterium tuberculosis (acid-fast bacilli)
provides definitive confirmation of active TB infection and allows for susceptibility testing . A
chest X-ray can suggest TB, and a TST indicates exposure but cannot distinguish active from
latent infection.
6. A patient with right-sided heart failure is being assessed for signs of systemic venous
congestion. Which cluster of findings is most characteristic of this condition?
A) Orthopnea, paroxysmal nocturnal dyspnea, and cough
B) Crackles, frothy sputum, and tachypnea
C) Jugular venous distention, peripheral edema, and hepatosplenomegaly
D) Angina, syncope, and low systolic blood pressure
Correct Answer: Jugular venous distention, peripheral edema, and hepatosplenomegaly
Rationale: Right-sided heart failure occurs when the right ventricle cannot pump blood forward,
causing blood to back up into the systemic venous system . This manifests as jugular venous
distention (JVD), peripheral edema, and hepatosplenomegaly. Crackles and dyspnea are signs of
left-sided failure .
