Order Blood Pressure and Its Control

Order Blood Pressure and Its Control
Order Blood Pressure and Its Control
1. When arterial blood pressure is stated as 120/80, what do the numbers refer to?
A. 120 ÷ 80 = 1.5 = mean arterial pressure
B. Pulse pressure/mean arterial pressure
C. Systolic pressure/diastolic pressure
D. Arterial pressure/venous pressure
2. An increase in which of the following would NOT produce an increase in cardiac
output?
A. Heart stroke volume
B. Heart rate
C. Peripheral resistance
D. Venous return
3. Which of the following would increase arterial blood pressure?
A. A decrease in sympathetic impulses along the cardio-accelerator nerves
B. An increase in parasympathetic impulses along the vagus nerve
C. A decrease in sympathetic impulses along vasomotor nerves
D. An increase in sympathetic impulses along vasomotor nerves
Order Blood Pressure and Its Control
4. Which of the following chemicals would cause blood pressure to decrease when
they appear in blood?
A. Antidiuretic hormone
B. Angiotensin II
C. Aldosterone
D. Atrial natriuretic peptide
5. Which of the following statements about resting blood pressure is correct?
According to the Australian Heart Foundation Classifications:
A. High blood pressure is considered greater than 180/110 mmHg.
B. A systolic reading alone of greater than 140 mmHg is classed as high blood
pressure.
C. If the pulse pressure remains around 1/3 of the systolic reading, then BP is
considered normal regardless of the systolic and diastolic readings.
D. Blood pressure is classed as high if it is greater than 140/90 mmHg.
6. Which statement regarding the regulation of blood pressure by the endocrine
system is correct?
A. In comparison to other physiological regulatory processes, it is slow.
B. Aldosterone is responsible for the conversion of angiotensin I into angiotensin II.
C. In response to a drop in blood pressure, the renin-angiotensin aldosterone
system leads to parasympathetic stimulation.
D. Angiotensin-converting enzyme (ACE) is responsible for converting angiotensinogen into angiotensin I.
7. Blood flow is largely regulated at a tissue level. Which of the following could be
said regarding this process?
A. A rise in the blood level of O2 will result in vasodilation.
B. A raised CO2 level results in vasodilation.
C. Acidaemia directly increases vasopressin (ADH) release.
D. A raised CO2 blood level will result in an increased serum alkalinity.
8. Which of the following statements regarding antihypertensive medication is
correct?
A. Calcium channel blockers are a class of drug used to reverse a decrease in
blood volume.
B. Diuretic medication principally affects peripheral resistance.
C. Beta blockers target cardiac sympathetic innervation.
D. ACE inhibitors promote the effects of the renin-angiotensin aldosterone
system.
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