Field Internship Student Data Acquisition Project. (FISDAP) Airway Practice Exam

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Which factor can lead to hypoxia and is characterized by a loss of blood volume?

Pneumothorax
Anemia
Shock
Cardiac tamponade

The correct answer is: Anemia

The factor characterized by a loss of blood volume that can lead to hypoxia is shock. Shock refers to a clinical syndrome that occurs when the body's tissues do not receive adequate blood flow, leading to cellular and tissue hypoxia. In the context of shock, the primary issue often involves a significant loss of blood volume, which may be due to conditions such as hemorrhaging or dehydration. This loss prevents sufficient oxygen-rich blood from reaching vital organs and tissues, resulting in hypoxic conditions. While anemia is related to a deficiency in red blood cells or hemoglobin, which impairs oxygen transport, it does not inherently involve a loss of blood volume, but rather a change in blood composition. Pneumothorax and cardiac tamponade can cause respiratory distress or cardiovascular compromise, respectively, but they are more about pressure changes in the thoracic cavity rather than a true loss of blood volume. Therefore, shock is most directly associated with the loss of blood volume leading to hypoxia.