Nursing Elites

1. When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:

• A. nondisjunction.
• B. X-linked recessive inheritance.
• C. genomic imprinting.
• D. autosomal dominant inheritance.

Correct answer: A

Rationale: The correct answer is A: nondisjunction. Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division leading to an extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome. Choices B, C, and D are incorrect. X-linked recessive inheritance refers to genetic disorders carried on the X chromosome, genomic imprinting involves gene expression based on parental origin, and autosomal dominant inheritance relates to disorders caused by a dominant gene on one of the non-sex chromosomes. In the case of trisomy 21, the cause is specifically related to the error in chromosome division, making nondisjunction the most appropriate answer.

2. During postoperative care for a child who has had a tonsillectomy, what is an important nursing intervention?

• A. Encouraging deep breathing exercises
• B. Encouraging the child to eat
• C. Administering antibiotics
• D. Applying ice to the throat

Correct answer: C

Rationale: Administering antibiotics is crucial post-tonsillectomy to prevent infection, as the surgical site is susceptible to bacterial growth. Encouraging deep breathing exercises can also be beneficial for lung expansion and preventing respiratory complications. However, administering antibiotics takes precedence as it directly addresses the risk of infection. Encouraging the child to eat may not be appropriate immediately post-tonsillectomy due to the risk of throat irritation and potential discomfort. Applying ice to the throat is typically not recommended after a tonsillectomy, as it may constrict blood vessels and hinder the healing process.

3. During a physical examination of a 9-month-old baby, the nurse observes a flat, discolored area on the skin. The nurse documents this as a:

• A. Papule.
• B. Macule.
• C. Vesicle.
• D. Scale.

Correct answer: B

Rationale: The correct answer is B: Macule. A macule is a flat, discolored area on the skin that is smaller than 1 cm in diameter. This term is used to describe conditions like freckles or petechiae. Choice A, Papule, refers to a small, solid, raised skin lesion (<0.5 cm) like a pimple. Choice C, Vesicle, describes a small blister filled with clear fluid. Choice D, Scale, refers to flakes or plates of dead skin that may be dry or greasy.

4. A child with sickle cell anemia develops severe chest pain, fever, a cough, and dyspnea. What should the nurse do first?

• A. Administer 100% oxygen to relieve hypoxia
• B. Administer pain medication to relieve symptoms
• C. Notify the practitioner because chest syndrome is suspected
• D. Notify the practitioner because the child may be having a stroke

Correct answer: C

Rationale: The correct action to take first when a child with sickle cell anemia presents with severe chest pain, fever, cough, and dyspnea is to notify the practitioner because acute chest syndrome is suspected. This condition is a medical emergency requiring prompt intervention. Administering oxygen or pain medication may be necessary interventions but should not precede notifying the practitioner. Stroke is not typically associated with these symptoms in sickle cell anemia.

5. A child with a diagnosis of celiac disease is being discharged. What dietary instructions should the nurse provide?

• A. Avoid dairy products
• B. Avoid gluten
• C. Avoid high-fat foods
• D. Avoid foods high in sugar

Correct answer: B

Rationale: The correct answer is B: 'Avoid gluten.' Celiac disease is a condition in which the immune system reacts to gluten, a protein found in wheat, barley, and rye. Avoiding gluten is essential in managing celiac disease as it helps prevent damage to the small intestine and alleviate symptoms. Choices A, C, and D are incorrect because dairy products, high-fat foods, and foods high in sugar do not directly relate to the management of celiac disease. It is crucial to focus on eliminating gluten-containing foods to effectively control the condition.

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