A nurse is caring for an infant who has a congenital heart defect. Which of the following defects is associated with increased pulmonary blood flow?
Tricuspid atresia
Patent ductus arteriosus
Coarctation of the aorta
Tetralogy of Fallot
The Correct Answer is B
A. Tricuspid atresia typically leads to decreased pulmonary blood flow due to the absence of normal blood flow to the lungs.
B. Patent ductus arteriosus results in increased pulmonary blood flow because it allows blood to flow from the aorta to the pulmonary artery, increasing the volume of blood going to the lungs.
C. Coarctation of the aorta can cause decreased blood flow to the lower body, which may not directly relate to increased pulmonary blood flow.
D. Tetralogy of Fallot is characterized by decreased pulmonary blood flow due to right ventricular outflow obstruction, making it not associated with increased pulmonary blood flow.
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Correct Answer is C
Explanation
A. Montelukast is a leukotriene receptor antagonist used for long-term management and prevention of asthma symptoms, not for acute relief.
B. Budesonide is an inhaled corticosteroid used for long-term control of asthma but does not provide immediate relief during an acute attack.
C. Albuterol is a short-acting beta-agonist (SABA) that provides rapid bronchodilation and is the first-line medication for relieving acute asthma symptoms.
D. Fluticasone is also an inhaled corticosteroid intended for long-term management, which does not address the immediate needs of an acute asthma attack.
Correct Answer is B
Explanation
A. Supraventricular tachycardia (SVT) typically has identifiable P waves; the absence of P waves suggests a different condition.
B. Atrial fibrillation is characterized by an irregular rhythm, inability to identify P waves, and varying intervals. This interpretation aligns with the client's ECG findings.
C. Sinus bradycardia would show identifiable P waves and a regular rhythm with a heart rate less than 60 bpm, which does not match the provided information.
D. First-degree heart block would also show identifiable P waves and regularity in the rhythm with a prolonged PR interval, which is not indicated here.