Quiz on Shock in Intensive Care Unit

What is the clinical condition of organ dysfunction resulting from an imbalance between cellular oxygen supply and demand?

• Shock

• Diabetes

• Hypertension

• Asthma

Which type of shock is characterized by reduced oxygen delivery related to a reduction in cardiac output owing to a primary cardiac problem?

• Cardiogenic Shock

• Distributive Shock

• Obstructive Shock

• Hypovolemic Shock

What is the primary physiologic disturbance in distributive shock?

• Reduction in stroke volume

• Reduction in systemic vascular resistance

• Elevated central venous pressure

• Elevated pulmonary capillary wedge pressure

Which organ system is most easily assessed for evidence of organ dysfunction during the physical examination in patients with shock?

• Respiratory System

• Gastrointestinal System

• Renal System

• Central Nervous System

What is the primary aim of therapy in shock?

• To reduce blood pressure

• To restore oxygen delivery

• To induce hypothermia

• To increase heart rate

Which type of shock is characterized by a reduction in oxygen delivery related to reduced cardiac output due to an extracardiac pulmonary vascular or mechanical process impairing blood flow?

• Obstructive Shock

• Hypovolemic Shock

• Cardiogenic Shock

• Distributive Shock

What is the main determinant of stroke volume in the equation DO2 = (HR × SV) × CaO2?

• Preload

• Afterload

• Contractility

• Systemic vascular resistance

Which type of shock is unique among the types of shock in that there is a compensatory increase in cardiac output?

• Hypovolemic Shock

• Cardiogenic Shock

• Obstructive Shock

• Distributive Shock

What is the shock index (SI) defined as?

• Heart rate/diastolic blood pressure

• Heart rate/systolic blood pressure

• Respiratory rate/diastolic blood pressure

• Respiratory rate/systolic blood pressure

What is the normal range for shock index (SI)?

• 1.2-1.5

• 0.1-0.3

• 0.8-1.0

• 0.5-0.7