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Removal of calcium ions from a blood sample would impair the clotting cascade as calcium is necessary for the conversion of prothrombin to thrombin, which is a crucial step in blood clotting. Without sufficient calcium, the blood would have difficulty forming a stable clot, which could result in prolonged bleeding or difficulty stopping bleeding when an injury occurs.
What else can I help you with?
Calcium is bound by what tube additive?
Calcium is bound by the tube additive ethylenediaminetetraacetic acid (EDTA) during sample collection to prevent coagulation and preserve the integrity of the sample for testing.
What is pure sample of calcium?
A pure sample of calcium is a silver-white metal that is highly reactive and not typically found in its elemental form in nature. It is commonly found in compound form, such as calcium carbonate in rocks like limestone, or in calcium phosphate in bones and teeth.
Why would the mass of a sample containing calcium get larger after a reaction?
The mass of a sample containing calcium might get larger after a reaction due to the calcium reacting with elements or compounds in the environment to form new substances that add weight to the sample. This could include the addition of oxygen, sulfur, or other elements to the calcium during the reaction.
Can the calcium concentration of a sample increase over time?
Yes, the calcium concentration of a sample can increase over time due to various factors such as dissolution of calcium-containing compounds, precipitation of calcium salts, or biological processes that release calcium into the solution. Factors like pH, temperature, and the presence of other ions can also influence the solubility and concentration of calcium in a sample over time.
What are Prerequisites for collection of blood sample for serum calcium level estimation?
To collect a blood sample for serum calcium level estimation, no specific prerequisites are typically required. However, it is recommended to fast for a few hours prior to the test, avoid strenuous exercise before the test, and inform the healthcare provider about any medications or supplements being taken that may affect calcium levels.
Calcium is bound by what tube additive?
Calcium is bound by the tube additive ethylenediaminetetraacetic acid (EDTA) during sample collection to prevent coagulation and preserve the integrity of the sample for testing.
Why cbc required a edta sample not citrate?
CBC analysis requires an EDTA sample because EDTA helps preserve the morphology of blood cells by chelating calcium, preventing clot formation and cell deterioration. Citrate is typically used for coagulation studies as it chelates calcium required for the clotting process, making it unsuitable for CBC analysis.
How would you describe the partial thromboplastin time test analysis?
The PTT test is a blood sample that is spun in a centrifuge, separating the plasma. The coagulation cascade is triggered by calcium and activating substances. The PTT is the time it takes for a blood clot to form.
What is pure sample of calcium?
A pure sample of calcium is a silver-white metal that is highly reactive and not typically found in its elemental form in nature. It is commonly found in compound form, such as calcium carbonate in rocks like limestone, or in calcium phosphate in bones and teeth.
How do they test the coagulation time of a blood sample?
Testing the coagulation time of a blood sample can be done in a few ways. The first is simply to record the amount of time it takes a sample to clot manually.
Why would the mass of a sample containing calcium get larger after a reaction?
The mass of a sample containing calcium might get larger after a reaction due to the calcium reacting with elements or compounds in the environment to form new substances that add weight to the sample. This could include the addition of oxygen, sulfur, or other elements to the calcium during the reaction.
Why is sodium oxalate added in fresh blood?
Sodium oxalate is added to fresh blood samples as an anticoagulant. It binds with calcium ions in the blood, preventing blood clotting by inhibiting the coagulation cascade. This allows the blood sample to remain in a liquid state for analysis.
Can the calcium concentration of a sample increase over time?
Yes, the calcium concentration of a sample can increase over time due to various factors such as dissolution of calcium-containing compounds, precipitation of calcium salts, or biological processes that release calcium into the solution. Factors like pH, temperature, and the presence of other ions can also influence the solubility and concentration of calcium in a sample over time.
What are Prerequisites for collection of blood sample for serum calcium level estimation?
To collect a blood sample for serum calcium level estimation, no specific prerequisites are typically required. However, it is recommended to fast for a few hours prior to the test, avoid strenuous exercise before the test, and inform the healthcare provider about any medications or supplements being taken that may affect calcium levels.
What color tube do you use for coagulation test?
Light Blue. The additive in these tubes is usually Na+ Citrate and there is a marking on the test tube to indicate the minimum fill. Blood must come at least up to the line or it will not be acceptable.
Why background scanning is done before scanning the sample in ftir?
Background scanning in FTIR is done to capture the interference signals from factors like ambient air or solvents, which can affect the accuracy of the sample signal. It helps determine the baseline noise level and allows for the removal of background signals from the sample spectrum, resulting in a more precise analysis of the sample.
What is the Color of normal calcium test in urine sample?
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