Nursing Elites

1. When a father asks why his child with tetralogy of Fallot seems to favor a squatting position, the nurse would explain that squatting:

• A. Increases peripheral vascular resistance
• B. Decreases arterial blood flow away from the heart
• C. It's a common resting position when a child is tachycardic
• D. Increases the workload of the heart

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.

2. The instructor is teaching a group of new mothers about infant care. Which statement indicates that further teaching is needed?

• A. I should put my baby to sleep on their back.
• B. I can give my baby water if they seem thirsty.
• C. Breastfeeding provides all the nutrients my baby needs.
• D. I should burp my baby after each feeding.

Correct answer: B

Rationale: The correct answer is B. Newborns do not need additional water as breast milk or formula provides all the necessary hydration. Giving water to infants can be harmful and is not recommended as it can interfere with the balance of electrolytes in their bodies. Choice A is correct as placing babies on their back for sleep is the recommended safe sleeping position. Choice C is also correct as breastfeeding does provide all the essential nutrients for babies. Choice D is correct as burping the baby after each feeding helps prevent discomfort from trapped air.

3. A clinic nurse reviews the record of a child just seen by a doctor and diagnosed with suspected aortic stenosis. The nurse expects to note documentation of which clinical manifestation specifically found in this disorder?

• A. Pallor
• B. Hyperactivity
• C. Exercise intolerance
• D. Gastrointestinal disturbances

Correct answer: C

Rationale: Aortic stenosis is a condition characterized by the narrowing of the aortic valve, leading to reduced blood flow from the heart to the body. This narrowing restricts the amount of oxygenated blood that can reach various tissues, including muscles. As a result, individuals with aortic stenosis may experience exercise intolerance, as their muscles may not receive an adequate oxygen supply during physical activity. This can manifest as fatigue, shortness of breath, and overall decreased exercise capacity. Pallor (choice A) is a pale appearance that may be seen in anemia or other conditions affecting blood flow but is not specific to aortic stenosis. Hyperactivity (choice B) and gastrointestinal disturbances (choice D) are not typically associated with aortic stenosis.

4. The healthcare provider is preparing to administer Rh immune globulin (RhoGAM) to a postpartum client. This medication is indicated for:

• A. Rh-negative individuals with Rh-positive infants
• B. Rh-positive individuals with Rh-negative infants
• C. All individuals regardless of Rh status
• D. Individuals with a history of Rh incompatibility

Correct answer: A

Rationale: Rh immune globulin (RhoGAM) is administered to Rh-negative individuals who have given birth to Rh-positive infants to prevent Rh sensitization. When an Rh-negative individual gives birth to an Rh-positive infant, there is a risk of the mother developing antibodies against the Rh-positive blood cells, which can lead to hemolytic disease of the newborn in subsequent pregnancies. Rh immune globulin is given to prevent this sensitization in Rh-negative individuals who deliver Rh-positive infants.

5. Justine is admitted to the pediatric unit due to the occurrence of diabetic ketoacidosis signaling a new diagnosis of diabetes. The diabetes team explores the cause of the episode and takes steps to prevent a recurrence. Diabetic ketoacidosis (DKA) results from an excessive accumulation of which of the following?

• A. Sodium bicarbonate from renal compensation
• B. Potassium from cell death
• C. Glucose from carbohydrate metabolism
• D. Ketone bodies from fat metabolism

Correct answer: D

Rationale: Diabetic ketoacidosis (DKA) results from the excessive accumulation of ketone bodies from fat metabolism. During DKA, there is a lack of insulin leading to the breakdown of fat stores into fatty acids and their subsequent conversion into ketone bodies. These ketone bodies accumulate in the blood, leading to metabolic acidosis and the characteristic symptoms of DKA.

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