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CASE STUDY:
64-Year-Old Hispanic Female With Shortness of Breath, Weight Loss, and Diarrhea
CLINICAL INFORMATION
HISTORY OF PRESENT ILLNESS
A 64-year-old, previously healthy Hispanic female presented 5 years prior with shortness of breath, weight loss, and diarrhea. The initial chest x-ray showed nodular opacities and no mediastinal lymphadenopathy. Subsequently, a noncontrast chest CT scan revealed 2–3 mm nodules and reticular infiltrates.
ADDITIONAL DATA
Room air pulse oximetry was 97%. An echocardiogram revealed normal left ventricular systolic function with no evidence of pulmonary hypertension.
PULMONARY FUNCTION TESTS
Table 1
| FEV1 |
FVC |
FEV1/FVC |
| 2.16 L (86%) |
2.33 L (73%) |
93% |
Spirometry was consistent with a mild restrictive deficit (see Table 1). Cardio-pulmonary exercise test (CPET) showed normal anaerobic threshold (AT) of 0.663 L/min and VO2 max of 1.409 L/min.
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