Breathing disorder
Question 3. Sitting up in a forward-leaning position generally relieves which breathing disorder?
Hyperpnea
Orthopnea
Apnea
Dyspnea on exertion
Question 4. Which intracardiac pressure is generated by atrial contraction?
A wave
C wave
Y descent
X descent
Question 5. Which T-lymphocyte phenotype is the key determinant of childhood asthma?
CD4 helper T 1 (Th1) lymphocytes
CD4 helper T 2 (Th2) lymphocytes
CD8 cytotoxic T (Tc) lymphocytes
Memory T lymphocytes
