Laboratory Testing

Hematocrit levels indicate the percentage of red blood cells in the total blood volume. They are used to diagnose and monitor conditions such as anemia, polycythemia, and dehydration. Abnormal hematocrit levels can provide valuable information about a person's overall health and help guide further investigation and treatment.

It depends on the mothers genotype for the ABO system. Genotype is what happens at the gene level as her phenotype (what she expresses as a result of her genotype as a whole) is A.
Each parent donates one half of the child's genotype.


In the ABO system, A and B are co-dominant over O (O stands for Lack of Antigen).
Meaning if you have a genotype of A/O you will be A.


Below is a list of possible genotypes and their phenotypes (what the person's blood type will be)


Genotype Phenotype (Blood Type)
A/A A
A/B AB
A/O A
B/B B
B/O B
O/O O


The mother either has a genotype of A/O or A/A (one from each of her parents) if she has an A bloodtype.
Providing the father is definitely O,
If she is A/A, all of her children will be A (child's genotype is A/O)
If she is A/O, there is a 50% chance of her children being O (child's genotype - O/O) and 50% A (Genotype A/O)


The child be will be rhesus positive as their is only one locus for the gene and it is dominant.
(You can only become rhesus negative if both parents are Rhesus Negative.


Genotype Phenotype (Rhesus)
Pos/Pos Pos
Pos/Neg Pos
Neg/Neg Neg

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Myoglobin testing typically requires a red or gold/yellow-colored tube. These tubes contain a clot activator and gel separator to help with serum separation for accurate testing. Always follow the specific guidelines provided by the laboratory or healthcare provider.

This is a test that evaluates the level of fibrinogen in the blood. Fibrinogen is one of the major proteins in the blood involved in clotting. Elevated levels can indicate a systemic inflammatory problem, while low levels may indicate poor clotting or liver failure.

No, a positive and a positive make a positive

Typically, a purple or lavender-colored bottle top is used for blood tests to measure PSA (prostate-specific antigen) levels. This color indicates that the tube contains an additive called EDTA, which helps preserve the sample for accurate testing. Always follow the specific instructions provided by the laboratory or healthcare provider.

Lavender (EDTA) tube is commonly used for reticulocyte count.

A red top tube containing no anticoagulant or a gel separator tube would be suitable for troponin testing.

Most often, fasting is not required for an urea electrolytes creatinine (UEC) blood test. However, it is always best to follow the specific instructions provided by your healthcare provider or the testing facility to ensure accurate results.

Yes, the creatinine level is tested in a comprehensive metabolic panel (CMP) to evaluate kidney function and overall health. Elevated levels of creatinine may indicate impaired kidney function.

Overfilling a citrate tube with blood can lead to an incorrect blood-to-anticoagulant ratio, affecting coagulation testing results. It can cause inadequate anticoagulation which may result in clot formation or insufficient mixing of the blood with the anticoagulant. This can lead to inaccurate test results and potentially affect patient care.

I assume you mean in a lab or hospital type setting for bloodwork. There are many different tests that can be run in this tube. Usually it is a basic or comprehensive metabolic panel. Other common tests are amalayse and lipase, blood alcohol level, troponin, and renal panels.

DLDL blood test measures the levels of small, dense low-density lipoprotein (LDL) particles which are considered to be more atherogenic or harmful than larger LDL particles. This test helps in assessing cardiovascular risk by providing additional information about cholesterol metabolism compared to traditional cholesterol tests.

A hyperlipidemia blood test measures levels of cholesterol and triglycerides in the blood. High levels of these lipids can increase the risk of heart disease and other health problems. This test is used to assess a person's risk and guide treatment for hyperlipidemia.

A purple or lavender specimen container is typically used for antinuclear antibody (ANA) testing. These colors indicate that the tube contains an additive designed to prevent blood clotting, which is important for accurate testing.

A normal creatinine level in the blood is typically between 0.6 to 1.2 mg/dL. A level of 1.05 falls within this normal range. However, it's important to consider other factors and consult with a healthcare provider for a proper interpretation.

A red-top tube is typically used for a FSP (fasting serum panel) blood test. This tube does not contain any additives and is used to collect a sample of blood that will be spun down to separate the serum for testing.

Yes, a woman with O positive blood can be a universal donor and can donate blood to a man with AB positive blood. However, blood compatibility for pregnancy or organ donation is determined by other factors beyond just the blood type. It is important to consult with a healthcare professional for detailed information and advice in such situations.

Three parts of a routine urinalysis include physical examination (color, clarity, odor), chemical examination (pH, protein, glucose), and microscopic examination (red blood cells, white blood cells, bacteria).

A complete blood count (CBC) is typically processed in the Hematology section of a laboratory. This section specializes in analyzing blood cell components such as red blood cells, white blood cells, and platelets. The CBC provides important information about a person's overall health and helps diagnose various medical conditions.

The tube color for a prostate-specific antigen (PSA) test is typically lavender. This color is used to indicate that the tube contains an additive that helps stabilize the blood sample for accurate testing.

In general, fasting is not required before a blood test to measure bilirubin levels. However, it's important to follow any specific instructions provided by your healthcare provider for the test. It's always best to check with your healthcare provider or the lab performing the test for guidance.

Yes, Percocet can affect certain blood tests, such as liver function tests, by potentially causing abnormal results. It is important to inform your healthcare provider if you are taking Percocet before undergoing any blood tests to ensure accurate interpretation of the results.

A lavender-colored tube is typically used to collect blood samples for iron level testing.