As a medical professional with expertise in clinical diagnostics, I can provide insight into the lab tests that may indicate hypovolemia. Hypovolemia refers to a decrease in the volume of blood or other body fluids, which can lead to various physiological imbalances. Here are some key lab tests that can be indicative of hypovolemia:
1.
CBC (Complete Blood Count): A low hematocrit (HCT) may suggest a loss of plasma, which can be a sign of hypovolemia.
2.
Electrolyte Levels: Abnormalities in sodium (Na), potassium (K), chloride (Cl), and bicarbonate (HCO3) can suggest dehydration or fluid imbalances.
3.
BUN (Blood Urea Nitrogen) and
Creatinine: Elevated levels can indicate decreased renal perfusion due to hypovolemia.
4.
Glucose Levels: Hypoglycemia could be a sign of shock or stress response in the body.
5.
Lactate: Increased levels can be a marker of tissue hypoxia, which may result from hypovolemia.
6.
Prothrombin Time (PT) and **Activated Partial Thromboplastin Time (aPTT)**: Prolonged times can suggest a coagulopathy that may accompany severe hypovolemia.
7.
ABGs (Arterial Blood Gases): These can show metabolic acidosis or other imbalances due to hypovolemia.
8.
Urinalysis: In patients with trauma, this can help identify myoglobinuria, which can be associated with rhabdomyolysis and hypovolemia.
9.
Urine Pregnancy Test: In women of childbearing age, this can be important to rule out pregnancy-related issues that could mimic hypovolemia.
It's important to note that while these tests can provide valuable information, the diagnosis of hypovolemia is typically made through a combination of clinical assessment, patient history, and these lab findings.
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