Nursing Elites

1. What are the most common signs and symptoms of leukemia related to bone marrow involvement?

• A. petechiae, infection, fatigue
• B. headache, papilledema, irritability
• C. muscle wasting, weight loss, fatigue
• D. decreased intracranial pressure, psychosis, confusion

Correct answer: A

Rationale: The correct answer is A: petechiae, infection, fatigue. In leukemia, bone marrow involvement leads to a decrease in normal blood cell production, resulting in petechiae (small red or purple spots on the skin), increased susceptibility to infections due to decreased white blood cells, and fatigue from anemia. Choices B, C, and D are incorrect because they do not directly relate to the typical signs and symptoms of leukemia with bone marrow involvement. Headache, papilledema, irritability, muscle wasting, weight loss, decreased intracranial pressure, psychosis, and confusion are not typically associated with leukemia and bone marrow involvement.

2. A nurse is assessing the oral cavity of a 6-month-old infant. The parent asks which teeth will erupt first. How should the nurse respond?

• A. Incisors
• B. Canines
• C. Upper molars
• D. Lower molars

Correct answer: A

Rationale: The correct answer is A: Incisors. In infants, incisors are usually the first teeth to erupt, typically around 6 months of age. These are the front teeth used for cutting food. Canines (Choice B), upper molars (Choice C), and lower molars (Choice D) typically erupt after the incisors. Canines are sharp teeth used for tearing food, while molars are flat teeth used for grinding food.

3. Which best describes a full-thickness (third-degree) burn?

• A. Erythema and pain
• B. Skin showing erythema followed by blister formation
• C. Destruction of all layers of skin evident with extension into subcutaneous tissue
• D. Destruction injury involving underlying structures such as muscle, fascia, and bone

Correct answer: C

Rationale: A full-thickness (third-degree) burn involves the destruction of all layers of skin, including the epidermis, dermis, and extending into the subcutaneous tissue. This type of burn results in significant tissue damage and can appear pale, charred, or leathery. Choice A is incorrect as erythema and pain are more characteristic of superficial burns. Choice B describes a partial-thickness burn where the skin shows erythema followed by blister formation, involving the epidermis and part of the dermis. Choice D is incorrect as it describes a deeper type of injury involving structures beyond the skin layers, such as muscle, fascia, and bone, which is not specific to a full-thickness burn.

4. When assessing a child with suspected nephrotic syndrome, what clinical manifestation is the nurse likely to observe?

• A. Jaundice
• B. Edema
• C. Hypertension
• D. Polyuria

Correct answer: B

Rationale: Edema is a hallmark clinical manifestation of nephrotic syndrome. In nephrotic syndrome, there is increased glomerular permeability leading to the loss of proteins, particularly albumin, in the urine. This results in decreased oncotic pressure, leading to fluid shifting into the interstitial spaces and causing edema. Jaundice (Choice A) is not a typical clinical manifestation of nephrotic syndrome. Hypertension (Choice C) is more commonly associated with conditions like glomerulonephritis. Polyuria (Choice D) is not a primary symptom of nephrotic syndrome; instead, patients may have reduced urine output due to fluid retention from edema.

5. 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.

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