Author Question: The patient's admitting 12-lead ECG shows peaked P waves. Which of the following admitting diagnoses ... (Read 86 times)

tsand2 · **on:** Jun 25, 2018

The patient's admitting 12-lead ECG shows peaked P waves. Which of the following admitting diagnoses could be responsible for this finding?

a. Mitral stenosis
b. Pulmonary edema
c. Ischemia
d. Pericarditis

Question 2

Indications to support a pneumonectomy are

a. lesions confined to a single lobe.
b. bronchiectasis.
c. unilateral tuberculosis.
d. lung abscesses or cyst.

Harbringer · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

B
Tall, peaked P waves occur in right atrial hypertrophy and are referred to as P pulmonale because this condition is often the result of chronic pulmonary disease. Ischemia occurs when the delivery of oxygen to the tissues is insufficient to meet metabolic demand. Cardiac ischemia in an unstable form occurs because of a sudden decrease in supply, such as when the artery is blocked by a thrombus or when coronary artery spasm occurs. If the pulmonary edema is caused by heart failure, sometimes described as hydrostatic pulmonary edema, the fluid may be in a bat-wing distribution, with the white areas concentrated in the hilar region (origin of the major pulmonary vessels). However, as the heart failure progresses, the quantity of fluid in the alveolar spaces increases, and the white, fluffy appearance is seen throughout the lung. Pericarditis is inflammation of the sac around the heart.

Answer to Question 2

C
A pneumonectomy is the removal of entire lung with or without resection of the mediastinal lymph nodes. Indications include malignant lesions, unilateral tuberculosis, extensive unilateral bronchiectasis, multiple lung abscesses, massive hemoptysis, and bronchopleural fistula.