Nursing Care of Children with Cardiovascular and Respiratory Disorders # MCQs Practice set

Q.1 Which of the following is the most common congenital heart defect in children?

Tetralogy of Fallot
Ventricular Septal Defect
Atrial Septal Defect
Coarctation of the Aorta
Explanation - Ventricular Septal Defect (VSD) is the most common congenital heart defect, characterized by an abnormal opening between the ventricles.
Correct answer is: Ventricular Septal Defect

Q.2 A child with cyanotic heart disease is likely to exhibit which of the following?

Blue lips and nails
Pale skin
High blood pressure
Bradycardia
Explanation - Cyanotic heart disease results in reduced oxygenation of the blood, leading to cyanosis, noticeable as blue lips and nail beds.
Correct answer is: Blue lips and nails

Q.3 Which nursing intervention is priority for a child with congestive heart failure (CHF)?

Encourage fluid intake
Administer diuretics as prescribed
Limit activity completely
Provide high-calorie diet
Explanation - Diuretics reduce fluid overload, decrease pulmonary congestion, and improve cardiac function in children with CHF.
Correct answer is: Administer diuretics as prescribed

Q.4 Which diagnostic test is most definitive for detecting structural heart defects in children?

Electrocardiogram (ECG)
Chest X-ray
Echocardiogram
Pulse oximetry
Explanation - Echocardiography provides real-time imaging of the heart’s structure and function, making it the definitive test for congenital heart defects.
Correct answer is: Echocardiogram

Q.5 Which sign indicates increased work of breathing in infants with respiratory distress?

Nasal flaring
Bradycardia
Hypothermia
Cyanosis only on extremities
Explanation - Nasal flaring is a compensatory mechanism in infants to reduce airway resistance and indicates respiratory distress.
Correct answer is: Nasal flaring

Q.6 What is the primary cause of clubbing in children with chronic hypoxemia?

Pulmonary hypertension
Chronic oxygen deprivation
Heart murmurs
Frequent infections
Explanation - Clubbing occurs due to long-term low oxygen levels in the blood, commonly seen in cyanotic heart and chronic respiratory conditions.
Correct answer is: Chronic oxygen deprivation

Q.7 Which position helps improve breathing in a child with severe respiratory distress?

Supine
Prone
Tripod position
Side-lying
Explanation - Sitting upright and leaning forward (tripod position) maximizes chest expansion and eases breathing in distressed children.
Correct answer is: Tripod position

Q.8 A child with Kawasaki disease is at risk for which cardiovascular complication?

Myocardial infarction
Coronary artery aneurysm
Aortic stenosis
Mitral valve prolapse
Explanation - Kawasaki disease causes inflammation of blood vessels, leading to potential coronary artery aneurysms if untreated.
Correct answer is: Coronary artery aneurysm

Q.9 Which symptom is most indicative of left-sided heart failure in children?

Peripheral edema
Pulmonary congestion and dyspnea
Hepatomegaly
Ascites
Explanation - Left-sided heart failure leads to fluid backup in the lungs, causing pulmonary congestion and difficulty breathing.
Correct answer is: Pulmonary congestion and dyspnea

Q.10 Which nursing measure is important for a child with asthma during an acute attack?

Encourage deep coughing exercises
Administer short-acting bronchodilator
Place child in supine position
Restrict oxygen therapy
Explanation - Short-acting bronchodilators relieve bronchospasm quickly and are the first-line treatment during acute asthma attacks.
Correct answer is: Administer short-acting bronchodilator

Q.11 Which finding is characteristic of a child with coarctation of the aorta?

High blood pressure in upper extremities and weak pulses in lower extremities
Cyanosis of lips
Clubbing of fingers
Edema in lower limbs
Explanation - Coarctation of the aorta results in obstruction of blood flow to lower extremities, causing hypertension in arms and weak femoral pulses.
Correct answer is: High blood pressure in upper extremities and weak pulses in lower extremities

Q.12 Which electrolyte imbalance is most concerning in a child receiving diuretics for heart failure?

Hypernatremia
Hypokalemia
Hypercalcemia
Hypomagnesemia
Explanation - Loop and thiazide diuretics increase potassium excretion, making hypokalemia a significant risk in children with heart failure.
Correct answer is: Hypokalemia

Q.13 Which of the following is the hallmark of respiratory syncytial virus (RSV) infection in infants?

Wheezing and bronchiolitis
High fever only
Severe cough without wheezing
Peripheral edema
Explanation - RSV commonly causes bronchiolitis with wheezing in infants due to airway inflammation and obstruction.
Correct answer is: Wheezing and bronchiolitis

Q.14 Which clinical sign suggests right-sided heart failure in a child?

Pulmonary edema
Peripheral edema and hepatomegaly
Dyspnea
Cyanosis only on lips
Explanation - Right-sided heart failure leads to systemic venous congestion, causing peripheral edema and liver enlargement.
Correct answer is: Peripheral edema and hepatomegaly

Q.15 Which oxygen delivery device is most appropriate for a child with mild hypoxemia requiring low-flow oxygen?

Non-rebreather mask
Nasal cannula
Venturi mask
Bag-valve mask
Explanation - A nasal cannula provides low-flow oxygen efficiently and comfortably for children with mild hypoxemia.
Correct answer is: Nasal cannula

Q.16 Which nursing intervention is essential for a child with cystic fibrosis?

Encourage high-fat diet
Promote airway clearance and chest physiotherapy
Restrict fluids
Avoid physical activity
Explanation - Airway clearance techniques help remove thick mucus from lungs, reducing infections in children with cystic fibrosis.
Correct answer is: Promote airway clearance and chest physiotherapy

Q.17 Which is a classic sign of tetralogy of Fallot during an episode of cyanosis?

Knee-chest position
Supine rest
High-pitched cry
Peripheral edema
Explanation - Children with tetralogy of Fallot instinctively squat during cyanotic episodes to increase systemic vascular resistance and improve oxygenation.
Correct answer is: Knee-chest position

Q.18 Which laboratory finding is expected in a child with iron-deficiency anemia secondary to chronic heart failure?

High hemoglobin
Low hematocrit
Elevated platelets
Hyperkalemia
Explanation - Chronic heart failure can lead to poor nutrition and iron deficiency, resulting in low hematocrit and hemoglobin levels.
Correct answer is: Low hematocrit

Q.19 Which sign indicates impending respiratory failure in a child with severe asthma?

Silent chest with absent breath sounds
Mild wheezing
Coughing at night
Slight tachypnea
Explanation - A silent chest indicates very severe airway obstruction and impending respiratory failure; it is a medical emergency.
Correct answer is: Silent chest with absent breath sounds

Q.20 Which is the most appropriate nursing action for a child after cardiac catheterization?

Monitor the insertion site for bleeding and hematoma
Encourage vigorous activity immediately
Administer anticoagulants without monitoring
Avoid checking pulses in extremities
Explanation - After cardiac catheterization, careful monitoring of the puncture site prevents complications such as bleeding or hematoma formation.
Correct answer is: Monitor the insertion site for bleeding and hematoma

Q.21 Which medication is commonly prescribed to improve cardiac output in children with heart failure?

Digoxin
Furosemide
Prednisone
Amoxicillin
Explanation - Digoxin increases myocardial contractility and improves cardiac output in children with heart failure.
Correct answer is: Digoxin

Q.22 Which environmental measure helps prevent respiratory infections in children with chronic lung disease?

Maintaining smoke-free environment
Exposure to crowded places
Keeping windows closed always
Limiting hydration
Explanation - Smoke-free environments reduce irritation and risk of infections in children with chronic respiratory conditions.
Correct answer is: Maintaining smoke-free environment

Q.23 Which finding suggests a child with pneumonia may be deteriorating?

Increased respiratory rate and decreased oxygen saturation
Decreased temperature
Improved breath sounds
Stable heart rate
Explanation - Worsening respiratory distress is indicated by tachypnea and hypoxemia, signaling deterioration in pneumonia.
Correct answer is: Increased respiratory rate and decreased oxygen saturation

Q.24 Which is the primary nursing goal for a child with acute epiglottitis?

Maintain airway patency and prevent obstruction
Encourage oral fluids freely
Perform throat culture immediately
Administer nebulized steroids
Explanation - Epiglottitis can rapidly cause airway obstruction; maintaining airway patency is the priority intervention.
Correct answer is: Maintain airway patency and prevent obstruction