Nursing Elites

1. What causes an older female client's hair to turn gray?

• A. ''A loss of melanin occurs in the normal aging process.''
• B. ''The number of sweat glands and blood vessels decreases in the normal aging process.''
• C. ''The skin on the scalp becomes thin, causing moisture to escape.''
• D. ''It is caused by hereditary factors.''

Correct answer: A

Rationale: The correct answer is 'A loss of melanin occurs in the normal aging process.' Graying hair in older adults is primarily due to a decrease in the number of melanocytes responsible for providing pigment and hair color. This reduction in melanin production leads to gray hair. The other choices are incorrect. While it is true that the skin becomes thinner with aging and the number of sweat glands and blood vessels decreases, these changes are not directly related to graying hair. Additionally, hereditary factors can influence when graying starts, but they do not cause the graying of hair itself.

2. What is the most appropriate intervention for a client with suspected genitourinary trauma and visible blood at the urethral meatus?

• A. Insertion of a Foley catheter.
• B. In-and-out catheter specimen for urinalysis.
• C. A voided urine specimen for urinalysis.
• D. A urologist consult.

Correct answer: D

Rationale: A urologist consult is the most appropriate intervention for a client with visible blood at the urethral meatus and suspected genitourinary trauma. This specialist can evaluate the extent of the trauma and provide the necessary treatment. Foley catheter insertion (Choice A) and in-and-out catheter specimen for urinalysis (Choice B) are contraindicated in the presence of genitourinary trauma as they can worsen the injury. While a voided urine specimen for urinalysis (Choice C) may be ordered by the physician, it does not address the specific management needed for genitourinary trauma. Therefore, a urologist consult is the best option in this scenario.

3. A client in labor complains of back discomfort. Which position will best aid in relieving the discomfort? What position should the nurse encourage the mother to assume?

• A. Prone
• B. Standing
• C. Supine
• D. Hands and knees

Correct answer: D

Rationale: During back labor, when the back of the fetal head puts pressure on the woman's sacral promontory, the hands-and-knees position is encouraged. This position helps the fetus move away from the sacral promontory, reducing back pain and enhancing the internal-rotation mechanism of labor. A prone position would be difficult for the woman to assume and not helpful in relieving back discomfort. The supine position is risky due to supine hypotension, while standing may increase pressure, worsening backache.

4. Which of the following is not a nursing responsibility when preparing the client for central line insertion?

• A. advancing the guidewire
• B. explaining the procedure to the client
• C. maintaining sterile technique
• D. ensuring necessary consents are signed

Correct answer: A

Rationale: When preparing a client for central line insertion, nursing responsibilities include explaining the procedure to the client, ensuring necessary consents are signed according to the facility policy, and maintaining sterile technique when preparing the equipment and supplies. Advancing the guidewire is typically performed by the practitioner inserting the central line, not the nurse. It requires specialized training and expertise beyond the scope of nursing practice. Therefore, the correct answer is advancing the guidewire. Option A is the correct answer because it delineates an activity that is not within the usual scope of nursing practice during central line insertion preparation. Options B, C, and D are incorrect as they reflect essential nursing responsibilities in this context.

5. An amniocentesis is scheduled for a pregnant client in the third trimester. The nurse informs the client that the most common indication for amniocentesis during the third trimester is for which reason?

• A. Determination of whether alpha-fetoprotein (AFP) is present in the amniotic fluid
• B. Checking the amniotic fluid for intrauterine infection
• C. Determination of fetal lung maturity
• D. Checking the fetal cells for chromosomal abnormalities

Correct answer: C

Rationale: The most common indication for amniocentesis in the third trimester is the determination of fetal lung maturity. This assessment is essential to evaluate the fetus's readiness for extrauterine life. Checking for alpha-fetoprotein (AFP) in the amniotic fluid is more commonly associated with midtrimester amniocentesis to identify chromosomal abnormalities. Assessing for intrauterine infection is not a primary reason for amniocentesis in the third trimester. While checking fetal cells for chromosomal abnormalities is a common indication for midtrimester amniocentesis, it is not the most common indication in the third trimester.

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