Answer to Question 1
A
Wide, M-shaped P waves are seen in left atrial hypertrophy and are called P mitrale because left atrial hypertrophy is often caused by mitral stenosis.
Answer to Question 2
D
Acid ketones dissociate and yield hydrogen ions (H+) that accumulate and precipitate a fall in serum pH. The level of serum bicarbonate also decreases consistent with a diagnosis of metabolic acidosis. Breathing becomes deep and rapid (Kussmaul respirations) to release carbonic acid in the form of carbon dioxide. Acetone is exhaled, giving the breath its characteristic fruity odor.
Sequential decline of whale catches in the Antarctic shows the strong effect of human predators.
Testing Visual Fields by Confrontation: The nurse and patient should be approximately at an eye to e
Pulmonary function test: spirometry. (a) Normal respiratory volumes, as measured during spirometry.
Stratigraphic section of the Fayum shows the relative age of early anthropoid fossils.
Instructing a Patient to Use Crutches Correctly
This image shows a normal third-trimester fetal brain