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. During the initial assessment of the newborn, which of the following data would be considered normal?

• A. Chest circumference 31.5 cm, head circumference 33.5 cm
• B. Chest circumference 30 cm, head circumference 29 cm
• C. Chest circumference 38 cm, head circumference 31.5 cm
• D. Chest circumference 32.5 cm, head circumference 36 cm

Correct answer: A

Rationale: The correct answer is A. During the initial assessment of a newborn, the average head circumference at birth is 32 to 37 cm, while the average chest circumference ranges from 30 to 35 cm. Normally, the head's circumference is about 2 cm greater than the chest circumference at birth. Choice A provides measurements of chest circumference 31.5 cm and head circumference 33.5 cm, both falling within the normal range in terms of actual size and relative size. Choices B, C, and D do not align with the typical measurements seen in a healthy newborn. Choice B has both circumferences below the average range, choice C has the chest circumference above the average, and choice D has the head circumference notably higher than the chest circumference, which is not typical for a newborn.

3. Following the initial steps of resuscitation, a newborn remains apneic and cyanotic. What should you do next?

• A. begin ventilations with a bag-mask device.
• B. gently flick the soles of their feet for up to 60 seconds.
• C. immediately suction their mouth and nose.
• D. start CPR if the heart rate is less than 80 beats/min.

Correct answer: A

Rationale: If a newborn remains apneic and cyanotic after the initial resuscitation steps, the next appropriate action is to begin ventilations with a bag-mask device. This helps provide oxygen to the newborn and can be crucial in supporting their respiratory efforts. Option B of flicking the soles of their feet is not recommended in this scenario as the priority is addressing the respiratory distress. Option C of suctioning their mouth and nose is not the immediate next step if the newborn is not spontaneously breathing. Option D of starting CPR based only on the heart rate is not the first-line intervention for an apneic and cyanotic newborn.

4. A 30-year-old woman is 22 weeks pregnant with her first child. She tells you that her rings are not fitting as loosely as they usually do and that her ankles are swollen. Her blood pressure is 150/86 mm Hg. She is MOST likely experiencing:

• A. a condition unrelated to pregnancy.
• B. gestational diabetes.
• C. a hypertensive emergency.
• D. preeclampsia.

Correct answer: D

Rationale: The symptoms of swollen ankles, tight rings, and elevated blood pressure in a pregnant woman at 22 weeks gestation are concerning for preeclampsia. Preeclampsia is characterized by high blood pressure and signs of organ damage, commonly seen with symptoms such as swelling (edema) and protein in the urine. It is crucial to monitor and manage preeclampsia promptly as it can lead to severe complications for both the mother and the baby.

5. A 3-year-old female presents with respiratory distress. She is conscious, crying, and clinging to her mother. She has mild intercostal retractions and an oxygen saturation of 93%. The MOST effective way of delivering oxygen to her involves:

• A. gently restraining her and assisting with ventilations.
• B. ventilations with a flow-restricted, oxygen-powered device.
• C. a non-rebreathing mask with the flow rate set at 6 to 8 L/min.
• D. asking the mother to hold an oxygen mask near her face.

Correct answer: C

Rationale: In a pediatric patient with respiratory distress, a non-rebreathing mask with a flow rate set at 6 to 8 L/min is the most effective way to deliver oxygen. This method ensures a high concentration of oxygen is delivered to the child, aiding in improving oxygen saturation levels. In this scenario, the mother can assist in holding the mask to maintain comfort and cooperation in the child while ensuring proper oxygen delivery.

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