MIDTERM/FINAL EXAM QUESTIONS AND
ANSWERS 100% CORRECT!!
,Which of the following BEST describes the vagus nerve function in the heart
A. provides an excitatory effect on heart for fight or flight
B. stimulate release of catecholamines
C creates impulses that pace the heart
D. creates inhibitory effect decreasing HR - ANSWER D. creates inhibitory effect
decreasing HR
Which of the following events occur as a result of the diaphragm and external
intercostals contracting to facilitate inspiration?
A. A change in the thoracic cavity and lung volume leads to an intrapulmonary pressure
that exceeds the atmospheric pressure
B. An increase in the volume of the thoracic cavity and lung reducing the intrapulmonary
pressure
C. A decrease in the volume of the the thoracic cavity and lung increasing the
intrapulmonary pressure
D. An increase in the pressure within the lung occurs due to Boyle's law - ANSWER B.
An increase in the volume of the thoracic cavity and lung reducing the intrapulmonary
pressure
Which of the following lung architecture characteristics creates an increased
susceptibility for aspiration in the lung?
A. A length of 1 inch from the trachea to the lung
B. A left main stem angle of 40 to 60 degrees from the trachea
C. A right main stem angle of 25 degrees from the trachea
D. A length of 2 inches from the trachea to the lung - ANSWER A right main stem angle
of 25 degrees from the trachea
Which of the following lung tissue receptors are located along the smooth muscles lining
the airways are sensitive to increasing size and volume within the lung, termed the
Hering-Breuer reflex?
A. juxtapulmonary receptors
B chemoreceptors
C. stretch receptors
D. irritant receptors - ANSWER Stretch receptors
Which of the following anatomical landmarks coincides with the apex of the heart?
,A. second intercostal space
B. Right 5th intercostal space at the midclavicular line
C. Left 5th intercostal space at the midclavicular line
D. Left side at the 3rd intercostal space - ANSWER Left 5th intercostal space at the
midclavicular line
In the systemic arteries, at a partial pressure of 100 mm Hg, the percent of hemoglobin
should be:
A. 21%
B. 97%
C. 85%
D. 74% - ANSWER 97%
The BEST indicator of cardiac function is: - ANSWER Ejection fraction
The BEST reason why a physical therapist should acquire an understanding of the
various lobes and segments and their anatomical orientation is which of the following?
A. Provide tactile feedback for segmental breathing
B. Placement of a stethoscope for ausculation
C. Perform appropriate positioning during pulmonary hygiene
D. Educate patients on best positioning during coughing - ANSWER Perform
appropriate positioning during pulmonary hygiene
Which of the following brain areas provides control for automatic breathing?
A. Frontal lobe of the cerebrum
B. Hypothalamus
C. Pons
D. Medulla oblongata - ANSWER D. Medulla oblongata
Which of the following veins empties into the left atrium?
A. SVC
B. IVC
C. Pulmonary v
D. Coronary sinus v - ANSWER Pulmonary vein
Which of the following is the BEST indirect method for a physical therapist to measure
an increase in pulmonary capillary wedge pressure?
, Answers:
A.
Pulse oximetry
B.
Pitting edema scale
C.
Arterial blood gases
D.
Auscultation - ANSWER Pulse Oximetry
Which of the following blood pressure recordings would be considered hypertensive?
Answers:
A.
142/95
B.
132/85
C.
119/78
D.
128/88 - ANSWER A. 142/95
In a patient with coronary artery disease, beta-blocking medications may be prescribed.
Which of the following statements BEST describes the reasoning?
A.
Beta-blockers lower the aortic pressure during systole, increasing blood flow to coronary
arteries
B.
Beta-blockers lower the vasomotor tone in the media, increasing the diameter of the
artery
C.
Beta-blockers lower the intramyocardial pressures, increasing muscle relaxation
D.
Beta-blockers lower resting heart rate, increasing diastolic filling time - ANSWER D.
Beta-blockers lower resting heart rate, increasing diastolic filling time