dyspnea and cynosis

Question 1

Sudden dyspnea is a feature of:

Pleural effusion
Emphysema
Massive pulmonary embolism
Anemia
Pulmonary T.B

Answer 1

Massive pulmonary embolism

Question 2

All are false regarding cyanosis except:

1.Concentration of deoxyhemoglobin is more than 7gm/dl
2.Cold exposure can cause central cyanosis
3.Is clear more in anemic patients
4.Heart failure with lung congestion can cause central cyanosis
5.It is easy to detect in black persons

Answer 2

Heart failure with lung congestion can cause central cyanosis

Question 3

The following is true for psychogenic 1/1 dyspnea, except:

1.Rarely disturbs sleep 2.Frequently occur at rest
3.May be relieved by exercise
4.May be associated with digital and perioral paresthesia
5.Arterial blood gas analysis shows low PCO2 and PO2

Answer 3

Arterial blood gas analysis shows low PCO2 and PO2

Question 4

Are all true regarding cyanosis except:

1.Concentration of deoxyhemoglobin is more than 5 mg/dl
2.Central cyanosis best evaluated in ears
3.Is less clear in anemic patients
4.Pulmonary edema can cause central cyanosis
5.Lower limb ischemia causes peripheral cyanosis

Answer 4

Central cyanosis best evaluated in ears