A client is undergoing an abdominal computed tomography (CT) scan to evaluate suspected cholecystitis. The client expresses concern about potential radiation exposure. Which of the following responses should the nurse provide?
"The CT scan uses a magnetic field, so there is no radiation exposure."
"The amount of radiation used in a CT scan is very low and safe."
"There is no need to worry about radiation as the scan is done quickly."
"CT scans do not use radiation; they use sound waves for imaging."
The Correct Answer is B
Choice A reason:
CT scans use X-rays, not magnetic fields, to create detailed cross-sectional images of the body. They involve radiation exposure.
Choice B reason:
This statement is correct. While CT scans use X-rays, the amount of radiation used in modern CT machines is relatively low and considered safe. The benefits of the diagnostic information obtained from the scan usually outweigh the risks associated with the small amount of radiation exposure.
Choice C reason:
The speed of the scan does not impact the radiation exposure. The amount of radiation used in a CT scan remains the same regardless of the scan duration.
Choice D reason:
CT scans use X-rays, not sound waves. Sound waves are used in ultrasound imaging, not in CT scans.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
A diet high in fiber and low in fat is generally considered healthy, but it is not specifically associated with an increased or decreased risk of peptic ulcer disease.
Choice B reason:
Smoking and alcohol consumption are indeed risk factors for peptic ulcer disease. They can contribute to the development and exacerbation of ulcers.
Choice C reason:
This statement is correct. The use of NSAIDs, such as aspirin and ibuprofen, and Helicobacter pylori infection are well-established risk factors for peptic ulcer disease.
Choice D reason:
While stress and emotional factors may exacerbate peptic ulcer symptoms, they are not the primary cause of the condition. The primary causes are H. pylori infection and the use of NSAIDs.
Correct Answer is D
Explanation
Choice A reason:
A perforated peptic ulcer can lead to localized peritonitis, which may cause abdominal rigidity and guarding, rather than hypoactive bowel sounds.
Choice B reason:
Reduced abdominal tenderness is not expected in a client with a perforated peptic ulcer. Abdominal tenderness is likely to be present due to inflammation and irritation of the peritoneal lining.
Choice C reason:
Elevated blood pressure is not a typical finding in a client with a perforated peptic ulcer. The client may experience hypotension due to fluid loss and hemorrhage.
Choice D reason:
This statement is correct. A perforated peptic ulcer can cause increased abdominal rigidity due to the inflammation and irritation of the peritoneal lining. The abdomen may feel tense and rigid upon palpation.
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