Coarctation of the aorta, aortic stenosis, and pulmonic stenosis are congenital heart defects in which category?

Obstructive congenital heart defects involve the presence of narrowing or constriction in various parts of the heart or major blood vessels. In the case of coarctation of the aorta, there is a narrowing or constriction in the aorta, which can obstruct blood flow. Aortic stenosis involves the narrowing of the aortic valve, and pulmonic stenosis involves the narrowing of the pulmonary valve. These defects create obstacles to the normal flow of blood out of the heart, leading to increased pressure within the heart and affecting blood circulation.

The other categories mentioned are:

B. Mixing defects: These defects involve abnormal mixing of oxygenated and deoxygenated blood within the heart, typically due to septal defects like atrial septal defect (ASD) or ventricular septal defect (VSD).

C. Decreased pulmonary blood flow: These defects are characterized by reduced blood flow to the lungs, such as in the tetralogy of Fallot.

D. Increased pulmonary blood flow: These defects involve increased blood flow to the lungs, often due to shunting of blood from the left side of the heart to the right side, as seen in atrial septal defects or ventricular septal defects.

The findings that indicate a diagnosis of Acute Kidney Injury (AKI) in a 5-year-old patient are:

A. Peripheral Edema: Peripheral edema, or swelling in the extremities, can be a sign of fluid retention due to impaired kidney function in AKI.

E. Oliguria: Oliguria, which is a decreased urine output, is a common sign of AKI. It can be defined as a urine output of less than 0.5 mL/kg/hour in children.

The other findings mentioned (B, C, and D) do not specifically indicate a diagnosis of AKI:

B. Blood pressure of 112/70: The blood pressure within this range is not necessarily indicative of AKI on its own.

C. Potassium level of 4.7 (normal: 3.5-5.0 mmol/L): While abnormal potassium levels can be associated with AKI, a potassium level of 4.7 mmol/L is within the normal range.

D. Diarrhea: Diarrhea is not typically a direct symptom of AKI but may be seen in various other conditions or as a result of electrolyte imbalances associated with kidney dysfunction.