HUMB2009 Study Guide - Final Guide: Abdominal Cavity, Costodiaphragmatic Recess, Lymphangitis

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X-ray is the first approach, low dose, fast, over view of the lungs. Tb affects mainly the apical lordotic position may be needed to display the pattern. Examine: lungs and diaphragm, pulmonary vessels and main bronchus, heart shadow, other mediastinal structures, soft tissue structures + bones. Look for free air in the abdomen: lungs and diaphragm. Examine l+r lungs and determine if they are the same density. Check for blunting of costophrenic angles: examine the pulmonary vessels and main bronchus. Blood carrying structures will diminish as they course laterally. Carina may be seen with the right main bronchus having a shallow angle, while the left is more acute. Enlarged lymph nodes and tumors can arise from this region making them more dense: examine the heart shadow. 2/3 of heart should be to the left of the midline. Normal heart should take up no more than half of the thoracic cavity.

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