Question at position 62 __________ shock results from lack of fluid or blood volume.CardiogenicHypovolemicObstructiveDistributive单项选择题
A
Cardiogenic
B
Hypovolemic
C
Obstructive
D
Distributive

Question

Question at position 62 __________ shock results from lack of fluid or blood volume.CardiogenicHypovolemicObstructiveDistributive

BlackTom AI · Accepted Answer

Question restatement: The prompt asks which type of shock results from a lack of fluid or blood volume, with the options Cardiogenic, Hypovolemic, Obstructive, and Distributive.
Option 1 – Cardiogenic: This type of shock stems from the heart’s inability to pump effectively, such as after a massive myocardial infarction or severe heart failure. It is not primarily caused by a loss of fluid or intravascular volume, so this option inaccurately attributes the shock to pump failure rather than volume depletion.
Option 2 – Hypovolemic: This category directly refers to shock due to decreased circulating blood or fluid volume, whether from hemorrhage (blood loss) or non-hemorrhagic causes like severe dehydration or plasma loss. This matches the mechanism described in the question as a lack of fluid or blood volume.
Option 3 – Obstructive: Obstructive shock results from a physical obstruction impeding blood flow, such as massive pulmonary embolism, tension pneumothorax, or cardiac tamponade. While it precipitates shock, its primary cause is obstruction rather than a reduction in intravascular volume.
Option 4 – Distributive: Distributive shock involves widespread vasodilation and maldistribution of blood flow, seen in septic, anaphylactic, or neurogenic shock. The issue here is abnormal distribution rather than a direct deficit in circulating volume, though volume may be reduced secondarily.
Summary of reasoning: The core mechanism described in the question is a reduction in intravascular volume leading to inadequate tissue perfusion, which is the hallmark of hypovolemic shock. The other options describe shock etiologies rooted in pump dysfunction (cardiogenic), physical obstruction (obstructive), or abnormal vascular tone with redistribution (distributive), none of which fundamentally hinge on a lack of circulating volume as the primary cause.

Question at position 62 __________ shock results from lack of fluid or blood volume.CardiogenicHypovolemicObstructiveDistributive单项选择题

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