A complete blood count is commonly performed before a client goes into surgery. What does this test seek to identify?

Abnormally low hematocrit (hct) and hemoglobin (hb) levels-rationale.

Explanation:

Abnormally low hematocrit (hct) and hemoglobin (hb) levels-rationale. At low pre-operative hct and hb levels indicate the patient may require a blood transfusion before surgery.

if the hct and hb levels decrease during surgery because of blood loss, the need for a transfusion increases.