Nursing Elites

1. An occupational health nurse works at a manufacturing plant where there is potential exposure to inhaled dust. Which action, if recommended by the nurse, will be most helpful in reducing the incidence of lung disease?

• A. Treat workers with pulmonary fibrosis.
• B. Teach about symptoms of lung disease.
• C. Require the use of protective equipment.
• D. Monitor workers for coughing and wheezing.

Correct answer: C

Rationale: Prevention of lung disease requires the use of appropriate protective equipment such as masks to reduce exposure to inhaled dust, which is a significant risk factor for lung disease. Teaching about symptoms of lung disease, treating workers with pulmonary fibrosis, and monitoring for coughing and wheezing are important actions for early recognition and treatment of lung disease. However, the most effective strategy to prevent lung damage in this scenario is to require the use of protective equipment to minimize exposure to harmful substances.

2. A 58-year-old client is being tested for rheumatoid arthritis. Her physician orders an erythrocyte sedimentation rate (ESR). Which of the following results is most likely to be associated with arthritis?

• A. 5 mm/hr
• B. 12 mm/hr
• C. 28 mm/hr
• D. 40 mm/hr

Correct answer: D

Rationale: The erythrocyte sedimentation rate (ESR) measures levels of inflammation in the body. Elevated ESR levels are commonly seen in autoimmune conditions like rheumatoid arthritis due to the presence of inflammation. In women over 50 years old, a normal ESR is typically below 30 mm/hr. Therefore, a result of 40 mm/hr is more indicative of arthritis in a 58-year-old individual. Choices A, B, and C are below the normal ESR range for a woman of this age and would not be as strongly associated with arthritis.

3. Which risk factor places patients and residents at the greatest risk for falls?

• A. Old age
• B. Middle age
• C. Pneumonia
• D. COPD

Correct answer: A

Rationale: Old age is a significant risk factor for falls as elderly individuals are more prone to falls due to factors like decreased balance, muscle strength, and vision. Middle age is less associated with falls compared to old age. Pneumonia and COPD are medical conditions that are not direct risk factors for falls, unlike aging which significantly increases the risk of falls.

4. Which information given by a 70-year-old patient during a health history indicates to the nurse that the patient should be screened for hepatitis C?

• A. The patient had a blood transfusion in 2005
• B. The patient used IV drugs about 20 years ago
• C. The patient frequently eats in fast-food restaurants
• D. The patient traveled to a country with poor sanitation

Correct answer: B

Rationale: The correct answer is 'The patient used IV drugs about 20 years ago.' Any patient with a history of IV drug use should be tested for hepatitis C due to the increased risk of transmission through sharing needles. Blood transfusions given after 1992, when an antibody test for hepatitis C became available, do not pose a risk for hepatitis C. Hepatitis C is not spread by the oral-fecal route, so contaminated food or traveling to countries with poor sanitation are not direct risk factors for hepatitis C.

5. A child has recently been diagnosed with Duchenne muscular dystrophy (DMD). The parents are receiving genetic counseling prior to planning another pregnancy. Which of the following statements includes the most accurate information?

• A. Duchenne is an X-linked recessive disorder, so daughters have a 50% chance of being carriers and sons a 50% chance of developing the disease.
• B. Duchenne is an X-linked recessive disorder, so both daughters and sons have a 50% chance of developing the disease.
• C. Each child has a 1 in 4 (25%) chance of developing the disorder.
• D. Sons only have a 1 in 4 (25%) chance of developing the disorder.

Correct answer: A

Rationale: The correct answer is that Duchenne is an X-linked recessive disorder, meaning the affected gene is located on one of the two X chromosomes of a female carrier. If a son receives the X chromosome bearing the gene, he will develop the disease, giving him a 50% chance of being affected. Daughters, on the other hand, are not affected by Duchenne but have a 50% chance of being carriers since they inherit one copy of the defective gene from the mother. The other X chromosome is inherited from the father, who cannot be a carrier. Therefore, choice A is accurate. Choice B is incorrect because daughters do not develop the disease, and sons have a 50% chance of developing, not both having a 50% chance. Choice C is incorrect as it does not consider the X-linked inheritance pattern of Duchenne. Choice D is inaccurate as it incorrectly states that only sons have a 25% chance of developing the disorder, omitting the carrier status of daughters.

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