A 43-year-old woman is being evaluated for exertional dyspnea. She has a history of right leg deep vein thrombosis that was diagnosed 18 years ago during the postpartum period of her first pregnancy. Her other medical problems include hypertension, hyperlipidemia, type 2 diabetes, and asymptomatic gall stones. She works in a local textile factory and has 20 pack-year smoking history.
Her blood pressure is 150/90 mm Hg and pulse is 76/min. Her BMI is 36 kg/m². Examination shows a plethoric appearance, mild facial hirsutism, and abdominal skin stretch marks. Lungs are clear to auscultation. There is no leg swelling. Arterial blood gas findings demonstrate a pH of 7.35, pCO₂ of 45 mm Hg, and pO₂ of 65 mm Hg.
Pulmonary function tests are shown below.
Which of the following is the most likely cause of her dyspnea?

Question

A 43-year-old woman is being evaluated for exertional dyspnea. She has a history of right leg deep vein thrombosis that was diagnosed 18 years ago during the postpartum period of her first pregnancy. Her other medical problems include hypertension, hyperlipidemia, type 2 diabetes, and asymptomatic gall stones. She works in a local textile factory and has 20 pack-year smoking history.
Her blood pressure is 150/90 mm Hg and pulse is 76/min. Her BMI is 36 kg/m². Examination shows a plethoric appearance, mild facial hirsutism, and abdominal skin stretch marks. Lungs are clear to auscultation. There is no leg swelling. Arterial blood gas findings demonstrate a pH of 7.35, pCO₂ of 45 mm Hg, and pO₂ of 65 mm Hg.
Pulmonary function tests are shown below.

Which of the following is the most likely cause of her dyspnea?

Quizplus · Accepted Answer

11ec193a_98d3_6118_853d_a37b73dbd1bf_MD0002_00 __________ References: Pulmonary function testing. (http://www.ncbi.nlm.nih.gov/pubmed/22222135)

A 43-Year-Old Woman Is Being Evaluated for Exertional Dyspnea