4.3 CARDIAC
28 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of the ductus venosus in fetal circulation?

  • Enables deoxygenated blood from the SVC to pass into the RV
  • Permits the mixing of oxygenated and deoxygenated blood in the PA
  • Allows the majority of oxygenated placental blood to bypass the liver and enter the IVC (correct)
  • Allows oxygenated blood from the placenta to pass from the RA to LA

    • What is the most common form of congenital disease?

  • Multifactorial origin
  • Congenital heart disease (correct)
  • Chromosomal abnormalities
  • Infections

    • Which of the following conditions is associated with the highest risk of adverse outcome from endocarditis?

  • Repaired CHD with residual defects
  • Cardiac transplant recipients who develop cardiac valvulopathy
  • Unrepaired cyanotic CHD (correct)
  • Prosthetic cardiac valve or prosthetic material used for cardiac valve repair

    • What is the result of a left-to-right shunt in acyanotic lesions?

    <p>Increased pulmonary blood flow</p> Signup and view all the answers

    What is the threshold for closure of an atrial septal defect?

    <p>Pulmonary blood flow &gt; 1.5 x systemic blood flow</p> Signup and view all the answers

    What is the primary reason for closure of the ductus arteriosus after birth?

    <p>Flow reversal followed by constriction of the muscular wall</p> Signup and view all the answers

    What is the primary goal of hemodynamic management in Eisenmenger's syndrome?

    <p>To achieve a balance between pulmonary and systemic vascular resistance</p> Signup and view all the answers

    What is the most common lesion associated with tricuspid atresia?

    <p>VSD</p> Signup and view all the answers

    What is the primary mechanism of action of prostaglandin E infusion in the initial treatment of transposition of the great arteries?

    <p>Maintains patency of the PDA</p> Signup and view all the answers

    What is the characteristic feature of Eisenmenger's syndrome?

    <p>Reversal of a left-to-right shunt</p> Signup and view all the answers

    What is the most common symptoms of tricuspid atresia?

    <p>Dependent on the degree of obstruction to pulmonary blood flow</p> Signup and view all the answers

    What is the mortality rate without surgical treatment in transposition of the great arteries at 1 year?

    <p>Essentially 100%</p> Signup and view all the answers

    What is the effect of increased pulmonary vascular resistance on a left-to-right shunt?

    <p>It decreases the left-to-right shunt</p> Signup and view all the answers

    What is the primary goal of anesthetic management in a patient with a ventricular septal defect?

    <p>To minimize the left-to-right shunt</p> Signup and view all the answers

    What is the effect of volatile anesthetics on a left-to-right shunt in a patient with a ventricular septal defect?

    <p>They decrease the left-to-right shunt</p> Signup and view all the answers

    What is the indication for surgical correction of a ventricular septal defect?

    <p>Prior to the development of right ventricular hypertrophy</p> Signup and view all the answers

    What is the effect of increased sympathetic stimulation on a right-to-left shunt in a patient with a ventricular septal defect?

    <p>It increases the right-to-left shunt</p> Signup and view all the answers

    What is the primary goal of anesthetic management in a patient with a patent ductus arteriosus?

    <p>To minimize the left-to-right shunt</p> Signup and view all the answers

    What is the effect of increased FiO2 on a right-to-left shunt in a patient with a ventricular septal defect?

    <p>It decreases the right-to-left shunt</p> Signup and view all the answers

    What is the characteristic of a cyanotic lesion?

    <p>Right-to-left shunt</p> Signup and view all the answers

    What is the effect of a decrease in systemic vascular resistance on a right-to-left shunt in a patient with tetralogy of Fallot?

    <p>It increases the right-to-left shunt</p> Signup and view all the answers

    What is the preferred induction agent in a patient with tetralogy of Fallot?

    <p>Ketamine</p> Signup and view all the answers

    In a patient with L-transposition of the great arteries, what is the correct sequence of blood flow?

    <p>RA -&gt; mitral valve -&gt; LV -&gt; pulmonic valve -&gt; lungs</p> Signup and view all the answers

    What is the primary concern in anesthetizing a patient with transposition of the great arteries?

    <p>Avoiding myocardial depression</p> Signup and view all the answers

    What is the treatment for truncus arteriosus?

    <p>Repair VSD and create an artificial pulmonary artery</p> Signup and view all the answers

    What is the result of total anomalous pulmonary venous return?

    <p>Oxygenated blood returns to the right heart</p> Signup and view all the answers

    What is the purpose of prostaglandin infusion in a patient with hypoplastic left heart?

    <p>To maintain the PDA</p> Signup and view all the answers

    What is the primary symptom of a double aortic arch?

    <p>Stridor</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser