Correct!
5. All of the above

Chest X-ray, pulse oximetry, electrocardiography (EKG), pulmonary function testing, and a complete blood count (CBC) are all suggested as initial testing for dyspnea (1). Our patient’s initial laboratory testing is given in Table 1.

Table 1. Initial Laboratory Testing.

• CBC, CMP, TSH and troponins are within normal limits
• Coccidiomycosis serology: negative
• SARS-COV2 PCR: negative
• EKG: normal

Her pulmonary function tests (PFTs) are given in Figure 1.

Figure 1. Patient’s pulmonary function testing.

Which of the following is the best interpretation of the PFTs? (Click on the correct answer to be directed to the third of seven pages)

1. Normal
2. Mild obstruction with reversibility by bronchodilators
3. Mild restriction
4. Mild obstruction and restriction
5. Moderate restriction

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