Complete bed rest What is the most common congenital heart disease?

Correct Answer: C

Rationale: The most common congenital heart disease is Ventricular Septal Defect (VSD). VSD is a heart condition present at birth where there is a hole in the wall (septum) separating the lower chambers of the heart (ventricles). This hole allows oxygen-rich blood from the left ventricle to mix with oxygen-poor blood in the right ventricle, leading to increased pulmonary blood flow and potentially causing complications such as pulmonary hypertension and right ventricular hypertrophy. VSD can be classified as an acyanotic heart defect with a left to right shunt. Treatment options for VSD include monitoring, medications, and in some cases, surgical intervention.

Correct Answer: B

Rationale: Communicating hydrocephalus is a type of hydrocephalus where there is no obstruction to the passage of cerebrospinal fluid (CSF), but rather a malfunction or malformation of the arachnoid villi, which are responsible for the reabsorption of CSF. In communicating hydrocephalus, the flow of CSF within the ventricular system is disrupted, leading to an accumulation of fluid and resulting in increased intracranial pressure.

Correct Answer: C

Rationale: In an infant with complete transposition of the great vessels, the survival at birth depends on the presence of a patent ductus arteriosus (PDA) to allow mixing of oxygenated and deoxygenated blood. In this condition, the aorta arises from the right ventricle and the pulmonary artery arises from the left ventricle, leading to separate circulatory pathways for oxygenated and deoxygenated blood. The survival of the infant is dependent on the remaining fetal shunts, such as a PDA, to maintain an adequate mixing of blood until corrective surgery can be performed. Therefore, the presence of a PDA is essential for the survival of an infant with complete transposition of the great vessels at birth.

Correct Answer: A

Rationale: Meconium is the term used to describe the first stool of a newborn. This stool is black and tarry in appearance. Meconium is made up of materials ingested by the fetus while in the uterus, such as mucus, amniotic fluid, and cells shed from the stomach and intestines. It is typically passed by a newborn within the first few days of life before transitioning to transitional stools, which are greenish-brown in color, and eventually to normal milk stools as the baby starts feeding on breast milk or formula.

Correct Answer: B

Rationale: Flaring of nares in a newborn is typically interpreted as a sign of respiratory distress. When a baby is having trouble breathing or is not getting enough oxygen, the body compensates by increasing the size of the nasal passages to allow for easier airflow. This response helps the baby to breathe more effectively during times of respiratory distress. It is important for healthcare providers to recognize this sign as it may indicate the need for prompt intervention and support to help the baby breathe more comfortably.