Understanding Shock and Perfusion

What is shock primarily characterized by?

• Decreased tissue perfusion

• Increased blood pressure

• Increased oxygen content

• Decreased heart rate

Which of the following is NOT a factor influencing perfusion?

• Cardiac output

• Blood glucose level

• Oxygen content

• Systemic vascular resistance

Cardiac output is determined by which two factors?

• Oxygen content and heart rate

• Stroke volume and blood pressure

• Systemic vascular resistance and stroke volume

• Heart rate and stroke volume

How is stroke volume measured?

• Grams per liter

• Beats per minute

• Liters per minute

• Liters per beat

What does preload refer to in the context of stroke volume?

• The resistance of blood vessels

• The heart's ability to contract

• The amount of blood in the heart before contraction

• The amount of blood remaining after contraction

In hypovolemic shock, what is primarily reduced?

• Blood volume

• Heart rate

• Vascular resistance

• Oxygen content

What happens to vascular resistance when blood vessel diameter decreases?

• Resistance remains unchanged

• Resistance fluctuates

• Resistance increases

• Resistance decreases

How does systemic vascular resistance affect perfusion?

• It has no effect on perfusion

• It increases perfusion

• It decreases perfusion

• It only affects blood pressure

What is the equation for mean arterial blood pressure?

• Cardiac output plus systemic vascular resistance

• Cardiac output times systemic vascular resistance

• Oxygen content times cardiac output

• Heart rate times stroke volume

Which tool is used to measure blood pressure non-invasively?

• Stethoscope

• Sphygmomanometer

• Thermometer

• Electrocardiogram