ATI Pediatric Medications Test

Correct Answer: A

Rationale: Squatting increases systemic vascular resistance, which leads to a reduction in the right-to-left shunting of blood in children with tetralogy of Fallot. This helps improve oxygenation by balancing the pulmonary and systemic blood flow. The squatting position decreases the pressure in the right ventricle and reduces the magnitude of the right-to-left shunt by increasing afterload, thereby improving oxygenation. Choices B, C, and D are incorrect because squatting does not decrease arterial blood flow away from the heart, is not related to being tachycardic, and does not increase the workload of the heart.

Correct Answer: B

Rationale: In situations where a sibling is upset about a family member being hospitalized, suggesting that the sister come to the hospital for a visit can help alleviate her concerns. This allows the sister to see her brother, ask questions, and receive reassurance from seeing him in stable condition. Direct contact and interaction can often provide more comfort and understanding than phone calls or staying at home. Encouraging phone calls (Choice A) might not provide the same level of comfort as a physical visit. While spending extra time with the daughter at home (Choice C) is important, in this scenario, facilitating a visit to the hospital can address the daughter's immediate concerns better. Reminding the parents that it is normal for children to be upset (Choice D) is not as proactive as arranging for the sister to visit her brother.

Correct Answer: A

Rationale: Beta-adrenergic agonists like Salbutamol are used to dilate the bronchioles in asthma patients. This action helps in relieving bronchospasms and improving airflow to the lungs, making breathing easier for the individual. While reducing inflammation is an essential part of asthma management, beta-adrenergic agonists primarily work by relaxing the smooth muscles around the airways, leading to bronchodilation. Choices B, C, and D are incorrect because beta-adrenergic agonists are not primarily used to reduce secondary infections, decrease postnasal drip, or directly reduce airway inflammation in asthma patients.

Correct Answer: D

Rationale: In diabetic ketoacidosis (DKA), there is a state of dehydration and electrolyte imbalance. Normal saline is the initial fluid of choice to help restore intravascular volume and improve electrolyte balance. It also helps to correct acidosis. Potassium chloride IV infusion is commonly added to the treatment regimen once kidney function is confirmed to prevent hypokalemia. Dextrose 5% IV infusion is not the first-line treatment for DKA as it can worsen hyperglycemia. Ringer's Lactate is not typically used as the initial fluid for managing DKA as it contains potassium and could worsen hyperkalemia.

Correct Answer: B

Rationale: In pediatric clinical assessment, a child at two years of age with fast breathing but without chest indrawing or stridor when calm is classified as having pneumonia. Fast breathing in this context is a key symptom used in the Integrated Management of Childhood Illness (IMCI) guidelines to diagnose pneumonia in children under five years old. The absence of chest indrawing or stridor when the child is calm helps differentiate this case from other respiratory conditions, making pneumonia the likely classification. Choices A, C, and D are incorrect. 'Very severe disease' is too broad and not specific to the symptoms described. 'No pneumonia' is also incorrect as the symptoms match the presentation of pneumonia. 'Local infection' is too vague and does not specifically address the respiratory symptoms observed.