Certain lab tests can be affected and the reported results will be inaccurate. It falsely decreases values such as RBC’s, HCT, and aPTT. It can also falsely elevate potassium, ammonia, magnesium, phosphorus, AST, ALT, LDH and PT.
Table of Contents
How does hemolysis affect lab results in veterinary medicine?
The main mechanisms by which hemolysis interferes with the testing procedures are as follows (6): Leakage of analytes from damaged erythrocytes, decrease in levels of analytes present in plasma at higher concentrations than in erythrocytes, and color interference and chemical interactions between red blood cell …
Does hemolysis affect serum glucose?
Dilutional effect caused by the leakage of intracellular components into the surrounding fluid especially in severe hemolysis may cause lower values for glucose, sodium and calcium (14,19).
What analytes are affected by hemolysis?
Two analytes greatly impacted by hemolysis are potassium and lactate dehydrogenase, in which their concentrations in erythrocytes are more than 20 times and 150 times higher than it is in serum, respectively.
How does hemolysis affect serum sodium?
As previously reported, in vitro hemolysis is known to negatively interfere with sodium due to a diluting effect (13,14), as the intracellular concentration of sodium is significantly lower than the concentration in serum or plasma.
What tests are most affected by haemolysis?
But it’s not just potassium that hemolysis affects. These other tests are affected when hemolyzed specimens are submitted for testing: LDH, AST, ALT, phosphorous, magnesium, ammonia, RBC, hemoglobin and hematocrit. Not only these analytes, but virtually everything that could be tested.
How does hemolysis affect creatinine?
Hemolysis can cause falsely elevated creatine kinase (CK) values when spectrophotometric methods of measurement are used. This apparent increase in CK is due to the red blood cell enzyme adenylate kinase.
What CBC parameters are affected by hemolysis?
The samples with a high degree of hemolysis exceeded the quality specifications for the desirable bias, presenting a decrease in RBC (4.7%), hematocrit (6.6%), MCV (0.6%), and an increase in the parameters: RDW (1.3%), MCH (1.5%), MCHC (2.5%), and platelet count (36.7%).
What is Hemolyzed serum?
Hemolysis is the breakdown of red blood cells, which can have an effect on laboratory results. Serum samples containing more than 100 mg/dL of hemoglobin can cause non-specific binding in serologic tests. Therefore, serologic testing is not recommended for a serum sample containing more than this amount of hemoglobin.
Is CBC affected by hemolysis?
Specifically, hemolysis is present if the free hemoglobin is greater than 0.3 g/L. 1 The effect on the complete blood count (CBC) results due to red cell destruction inaccurately decreases the red blood cell (RBC) count and the hematocrit (when calculated), while the hemoglobin (Hgb) and MCV values remain the same.
What are the electrolytes affected by hemolysis?
Moderate hemolysis significantly increased plasma phosphorus levels. Marked hemolysis significantly increased plasma values of potassium, phosphorus, total protein, and aspartate aminotransferase.
Does hemolysis cause hypoglycemia?
Hypoglycemia is proposed as capable of inducing hemolysis in G6PD deficiency.
Does hemolysis affect AST and ALT?
Hemolysis may falsely increase the following analytes: AST, alanine transaminase (ALT), LDH, total bilirubin, glucose, calcium, phosphorus, total protein, albumin, magnesium, amylase, lipase, creatine kinase (CK), iron, hemoglobin, and mean corpuscular hemoglobin concentration (MCHC).
What causes serum hemolysis?
Hemolysis resulting from phlebotomy may be caused by incorrect needle size, improper tube mixing, incorrect filling of tubes, excessive suction, prolonged tourniquet, and difficult collection.
Can serum get hemolyzed?
Hemolysis is a common occurrence seen in serum samples and may compromise the laboratory’s test parameters. Hemolysis can occur from two sourcesi. e. In-vivo hemolysis may be due to pathological conditions, such as autoimmune hemolytic anemia or transfusion reaction.
Does hemolysis cause hyponatremia?
The hemolysis was associated with a sudden drop in serum osmolality and profound hyponatremia, resulting from accidental dialysis against deionized water. Recognizing the condition and treating it promptly by dialysis with physiological dialysate are essential for patient survival.
How does hemolysis affect potassium levels?
Of all routine blood tests plasma/serum potassium measurement is one of the most sensitive to the effect of hemolysis because red-cell potassium concentration is so much higher than that of plasma (approximately 20 times higher); hemolysis causes a spuriously high plasma potassium concentration.
Does hemolysis affect serum calcium?
2. The calcium content of nonhemolyzed serum is slightly higher than that of plasma. Hemolyzed blood, after being treated with ammonium acetate, gives a slightly lower calcium content than nonhemolyzed blood.
Can hemolysis cause elevated liver enzymes?
HELLP syndrome is defined by hemolysis with a microangiopathic blood smear, elevated liver enzymes, and a low platelet count [44].
What happens during hemolysis?
Hemolytic anemia is a disorder in which red blood cells are destroyed faster than they can be made. The destruction of red blood cells is called hemolysis. Red blood cells carry oxygen to all parts of your body. If you have a lower than normal amount of red blood cells, you have anemia.
Does hemolysis affect ammonia levels?
This implies that hemolysis has little additional effect over time on the plasma ammonia measurement. In conclusion, hemolysis was found to have a significantly lower impact on the measurement of plasma ammonia than stated by the manufacturer.
Does hemolysis increase bun?
Hemolytic uremic syndrome (HUS) – BUN level is consistently increased with the elevation usually occurring very rapidly. The combination of renal insufficiency, a catabolic state, and reabsorption of blood from the GI tract can cause BUN levels to increase as much as 50 mg/dL/day.
Does hemolysis affect platelet count?
Effects of hemolysis on platelet activation. The percent decrease in platelet count increased with hemolysis from whole blood (WB), represented by Hb concentration (black squares) (r = 0.6659, p < 0.01).
Does hemolysis affect RBC?
It is thought that hemolysis is caused by damage to red blood cells, which can affect red blood cell count (RBC), mean corpuscular hemoglobin concentration (MCHC), and hematocrit (HCT), while the cell debris left from the broken red blood cells may also affect platelet count.
Can hemolysis cause low hemoglobin?
Hemolytic anemia is a class of anemia that is caused by the destruction of red blood cells, increased hemoglobin catabolism, decreased levels of hemoglobin, and an increase in efforts of bone marrow to regenerate products.