What are red blood cells ?

What are red blood cells ?
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Red blood cells are the most important blood cells that serve as the main source of oxygen supply to the tissues of the vertebrate body. During circulation in the capillaries of the lungs or gills, oxygen is collected in the red blood cells from the airways and carbon dioxide is released. In other tissues, oxygen is transferred from the red blood cells to the blood cells during blood flow through the capillaries and carbon dioxide flows in the opposite to the red blood cells.
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Related questions

What causes red blood cells to be found in a urine sample?

Description : What causes red blood cells to be found in a urine sample?

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In a normal human body, the total number of red blood cells is -General Knowledge

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Last Answer : There are total 30 trillion cells in our human body.

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Description : How do the red blood cells carry oxygen to the tissues? -Biology

Last Answer : answer:

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Description : In which part of our body are the red blood cells formed? -General Knowledge

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Description : How long is the life span of red blood cells in human body ?

Last Answer : How long is the lifespan of red blood cells in human body 120 days?

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Description : What is the lifespan of red blood cells ?

Last Answer : The average lifespan of a red blood cell in a healthy adult is 100-120 days. And 80-90 days in children .

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Description : What is the function of red blood cells ?

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Description : What are the two functions of red blood cells ?

Last Answer : : 1. Provides oxygen to the cells from the lungs. 2. Blood looks red due to red blood cells.

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Description : What is the amount of red blood cells ?

Last Answer : : Red bone marrow produces red blood cells. An adult male has about 5 million red blood cells per cubic millimeter of blood, while an adult female has about 4.5 million cubic millimeters per husband.

What is the amount of red blood cells produced in the human body every second ?

Description : What is the amount of red blood cells produced in the human body every second ?

Last Answer : * 20 lakh * red blood cells are produced in the human body every second.

What is the composition of red blood cells in blood of men and women ?

Description : What is the composition of red blood cells in blood of men and women ?

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How many types of proteins are there in red blood cells ?

Description : How many types of proteins are there in red blood cells ?

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How long is the lifespan of red blood cells ?

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What is the concentration of red blood cells in blood?

Description : What is the concentration of red blood cells in blood?

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In patients receiving massive blood transfusion for acute blood loss, which of the following is/are correct? A. Packed red blood cells and crystalloid solution should be infused to restore oxygen-carrying capacity and intravascular volume. B. Two units of FFP should be given with every 5 units of packed red blood cells in most cases. C. A “six pack” of platelets should be administered with every 10 units of packed red blood cells in most cases. D. One to two ampules of sodium bicarbonate should be administered with every 5 units of packed red blood cells to avoid acidosis. E. One ampule of calcium chloride should be administered with every 5 units of packed red blood cells to avoid hypocalcemia.

Description : In patients receiving massive blood transfusion for acute blood loss, which of the following is/are correct? A. Packed red blood cells and crystalloid solution should be infused to restore oxygen ... should be administered with every 5 units of packed red blood cells to avoid hypocalcemia.

Last Answer : Answer: A DISCUSSION: Patients who are suffering from acute blood loss require crystalloid resuscitation as the initial maneuver to restore intravascular volume and re-establish vital signs. If 2 to 3 liters ... when the infusion of blood proceeds at a rate exceeding 1 to 2 units every 5 minutes

Which of the following is/are acceptable reasons for the transfusion of red blood cells based on currently available data? A. Rapid, acute blood loss with unstable vital signs but no available hematocrit or hemoglobin determination. B. Symptomatic anemia: orthostatic hypotension, severe tachycardia (greater than 120 beats per minute), evidence of myocardial ischemia, including angina. C. To increase wound healing. D. A hematocrit of 26% in an otherwise stable, asymptomatic patient.

Description : Which of the following is/are acceptable reasons for the transfusion of red blood cells based on currently available data? A. Rapid, acute blood loss with unstable vital signs but no available ... increase wound healing. D. A hematocrit of 26% in an otherwise stable, asymptomatic patient.

Last Answer : Answer: AB DISCUSSION: Currently accepted guidelines for the transfusion of packed red blood cells include acute ongoing blood loss, as might occur in an injured patient, and the development of ... not be given based solely or predominantly on a numerical value such as a hematocrit of 28%

Which of the following statements about the preparation and storage of blood components is/are true? A. Solutions containing citrate prevent coagulation by binding calcium. B. The shelf life of packed red blood cells preserved with CPDA-1 is approximately 35 days at 1؛ to 6؛ C. C. There are normal numbers of platelets in packed red blood cells stored at 1؛ to 6؛ C for more than 2 days. D. The storage lesion affecting refrigerated packed red blood cells includes development of acidosis, hyperkalemia, and decreased intracellular 2,3DPG (diphosphoglycerate).

Description : Which of the following statements about the preparation and storage of blood components is/are true? A. Solutions containing citrate prevent coagulation by binding calcium. B. The ... cells includes development of acidosis, hyperkalemia, and decreased intracellular 2,3DPG (diphosphoglycerate).

Last Answer : Answer: ABD DISCUSSION: After blood has been collected from a donor, it is anticoagulated with a solution containing citrate, which acts by binding calcium. Blood is then separated into its ... transfusion or produce effects other than those predicted based on the content of the unit of blood

Which of the following statements about respiratory acidosis are true? A. Compensation occurs by a shift of chloride out of the red blood cells. B. Renal compensation occurs rapidly. C. Retention of bicarbonate and increased ammonia formation are normal compensatory mechanisms. D. Narcotic administration is an unusual cause of respiratory acidosis. E. The ratio of bicarbonate to carbonic acid is less than 20:1.

Description : Which of the following statements about respiratory acidosis are true? A. Compensation occurs by a shift of chloride out of the red blood cells. B. Renal compensation occurs rapidly. C. Retention of ... of respiratory acidosis. E. The ratio of bicarbonate to carbonic acid is less than 20:1.

Last Answer : Answer: CE DISCUSSION: Renal compensation for acute hypoventilation is relatively slow. Depression of the respiratory center by morphine can lead to respiratory acidosis. Renal retention of bicarbonate, ... into red cells combine to increase the ratio of bicarbonate to carbonic acid to 20:1

After being counseled about lifestyle and dietary changes, the patient was started on atorvastatin. During his treatment with atorvastatin, it is important to routinely monitor serum concentrations of (a) Blood urea nitrogen (BUN) (b) Alanine and aspartate aminotransferase (c) Platelets (d) Red blood cells (e) Uric acid

Description : After being counseled about lifestyle and dietary changes, the patient was started on atorvastatin. During his treatment with atorvastatin, it is important to routinely monitor serum concentrations of (a) ... Alanine and aspartate aminotransferase (c) Platelets (d) Red blood cells (e) Uric acid

Last Answer : Ans: D