A nurse is caring for a patient who has rheumatoid arthritis. Which of the following laboratory tests are used to diagnose the disease? (Select all that apply)
Antinuclear antibody (ANA) titer
BUN
Urinalysis
Erythrocyte sedimentation rate (ESR)
White blood cell count
Correct Answer : A,D,E
Choice A rationale:
Antinuclear antibody (ANA) titer is a blood test that detects the presence of antinuclear antibodies, which are autoantibodies that target the body's own tissues. These antibodies are often present in people with autoimmune diseases, including rheumatoid arthritis.
While a positive ANA test does not definitively diagnose rheumatoid arthritis, it can support a diagnosis when considered alongside other clinical findings and laboratory tests.
Choice B rationale:
Blood urea nitrogen (BUN) is a blood test that measures the amount of urea nitrogen in the blood. Urea nitrogen is a waste product that is produced when the body breaks down proteins.
BUN levels can be elevated in people with kidney disease, dehydration, or certain other medical conditions. However, BUN is not specifically used to diagnose rheumatoid arthritis.
Choice C rationale:
Urinalysis is a test that examines the urine for various substances, including cells, bacteria, and chemicals.
It can be used to diagnose a variety of conditions, including urinary tract infections, kidney disease, and diabetes. However, urinalysis is not typically used to diagnose rheumatoid arthritis.
Choice D rationale:
Erythrocyte sedimentation rate (ESR) is a blood test that measures how quickly red blood cells settle at the bottom of a test tube.
A high ESR can indicate inflammation in the body.
ESR is often elevated in people with rheumatoid arthritis, as it is a marker of inflammation.
Choice E rationale:
White blood cell count (WBC) is a blood test that measures the number of white blood cells in the blood. White blood cells are part of the immune system and help fight infection.
A high WBC count can indicate an infection or inflammation.
WBC count can be elevated in people with rheumatoid arthritis, as it is a marker of inflammation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C"]
Explanation
The correct answers are Choices A and C.
Choice A rationale: Ignoring the urge to defecate can lead to constipation because the longer stool remains in the colon, the more water is absorbed from it, making it harder and more difficult to pass. This can lead to a cycle of further constipation and discomfort.
Choice B rationale: Increased fiber in the diet usually helps prevent constipation by adding bulk to the stool and making it easier to pass. Therefore, it is not a cause of constipation, but rather a preventive measure.
Choice C rationale: Excessive laxative use can lead to dependence on laxatives for bowel movements and can disrupt normal bowel function. Over time, this can lead to constipation as the bowel becomes less responsive to normal stimuli.
Choice D rationale: Increased activity generally helps to prevent constipation by stimulating bowel motility. Physical exercise can enhance the efficiency of the digestive system, so it is not a cause of constipation.
Correct Answer is B
Explanation
Choice A rationale:
Requesting a prescription for a stool softener from the provider could be a potential solution, but it’s not the first step. Medications should be considered when lifestyle modifications and dietary changes are not effective.
Choice B rationale:
Incorporating more fluids and fiber into the patient’s diet is the most appropriate action. Constipation in older adults can be caused by dehydration and not eating enough. Dietary fiber adds bulk to the diet and is capable of absorbing water, which helps to soften the stool and promote regular bowel movements. Therefore, increasing fluid and fiber intake is often the first step in managing constipation.
Choice C rationale:
Encouraging the patient to engage in active range-of-motion exercises might not directly alleviate constipation. While physical activity is generally beneficial for overall health, increased exercise does not improve symptoms of constipation in nursing home residents or older adults.
Choice D rationale:
Advising the patient to avoid foods that cause gas might help if the patient has bloating or gas, but it won’t necessarily address the issue of constipation. The focus should be on increasing fiber and fluid intake.
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