Six weeks after the birth of a child with Trisomy 21, the parents return to the prenatal clinic for a follow-up visit. They have spoken with a genetic counselor, but are still unsure about the risk of having another child with Trisomy 21. The couple brings literature from the counselor with them, and asks the nurse to explain it. Which action should the nurse take?

The Ortolani maneuver is a physical examination technique used to assess for developmental dysplasia of the hip (DDH) in newborns. During the maneuver, the nurse gently abducts the infant's hips and applies gentle pressure to detect any instability or "click" at the hip joint. A positive Ortolani maneuver, where a click or clunk is felt or heard, can indicate the presence of a hip dislocation or dysplasia.

Asymmetrical buttocks can be a sign of hip dysplasia in newborns, and a positive Ortolani maneuver is an important finding that suggests a potential hip joint problem. Reporting this assessment test result to the healthcare provider allows for further evaluation and appropriate management of the newborn's hip condition.

The Plumb line test, which assesses fetal position curvature, is not directly related to hip dysplasia and may not be significant in this context.

The Babinski test, which reveals fanning out of the toes, is used to assess the integrity of the infant's neurological system and is not specific to hip dysplasia.

The Moro test, also known as the startle response, is a reflex assessment used to evaluate the newborn's neurological and sensory function. While it is important to assess the overall neurological status of the newborn, the Moro test is not specific to hip dysplasia.

The correct answer is: C. Experiences facial swelling after eating crab.

Choice A Reason: Drinking a glass of water in the past 2 hours is not typically a concern unless the patient has been instructed to fast. For most cardiac catheterization procedures, patients are asked to fast for a certain period before the procedure to reduce the risk of aspiration. However, small sips of water may be allowed with medications.

Choice B Reason: While reports of left chest wall pain are clinically significant and warrant investigation, they are not as immediately concerning for the angioplasty procedure itself. Chest pain is a symptom that may have led to the decision to perform angioplasty but does not pose an immediate risk of complication during the procedure as an allergy might.

Choice C Reason: As previously mentioned, experiencing facial swelling after eating crab is indicative of a shellfish allergy. This is important because the contrast dye used in angioplasty may contain iodine, and patients with shellfish allergies could have an increased risk of an allergic reaction to the iodine in the dye. It is essential to explore this further to take necessary precautions, such as premedication with antihistamines or using a different contrast agent.

Choice D Reason: Verbalizing a fear of being in a confined space, or claustrophobia, is a psychological concern that should be addressed to ensure the patient’s comfort during the procedure. However, it does not pose a direct risk to the safety of the angioplasty procedure like an allergic reaction does. Managing patient anxiety is important, but it is not the most critical factor to explore prior to the procedure.