Exposure adjustments for a patient with emphysema?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Radiologic Technology Supervisor and Operator Exam. Study with comprehensive questions, interactive flashcards, and detailed explanations. Boost your confidence and ensure exam readiness!

Multiple Choice

Exposure adjustments for a patient with emphysema?

Explanation:
Emphysema creates hyperinflated lungs with lots of air, so the lungs attenuate fewer X-rays and look very lucent on radiographs. If you keep the exposure the same, the image can become overexposed (too dark) because more photons reach the film. Reducing the exposure lowers the image density while keeping the same kVp preserves the existing penetration and contrast between air-filled lungs and surrounding tissues. Halving the mAs achieves this dose reduction without sacrificing the overall contrast, whereas increasing kVp would reduce subject contrast and altering mAs differently could lead to under- or overexposure.

Emphysema creates hyperinflated lungs with lots of air, so the lungs attenuate fewer X-rays and look very lucent on radiographs. If you keep the exposure the same, the image can become overexposed (too dark) because more photons reach the film. Reducing the exposure lowers the image density while keeping the same kVp preserves the existing penetration and contrast between air-filled lungs and surrounding tissues. Halving the mAs achieves this dose reduction without sacrificing the overall contrast, whereas increasing kVp would reduce subject contrast and altering mAs differently could lead to under- or overexposure.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy