Hematology Blood Exam Quiz

<p>Buffy Coat analysis (A)</p> Signup and view all the answers

<p>Identifying potential blood donors and diagnosing anemia (B)</p> Signup and view all the answers

<p>The volume of packed red blood cells (A)</p> Signup and view all the answers

<p>Dehydration (C)</p> Signup and view all the answers

<p>Hemoglobinometers track the progression of anemia by monitoring the amount of hemoglobin in the blood (A)</p> Signup and view all the answers

<p>Hematocrit is roughly three times the amount of hemoglobin (A)</p> Signup and view all the answers

<p>Increased blood volume during pregnancy dilutes the hemoglobin concentration causing lower hemoglobin and higher hematocrit levels (C)</p> Signup and view all the answers

<p>Snake-like direction from left to right (D)</p> Signup and view all the answers

<p>10 (C)</p> Signup and view all the answers

<p>Use a mouth pipette (D)</p> Signup and view all the answers

<p>200 (B)</p> Signup and view all the answers

<p>4 corner squares and center square (B)</p> Signup and view all the answers

<p>To dilute blood for counting cells (D)</p> Signup and view all the answers

<p>To avoid counting the same cell twice (D)</p> Signup and view all the answers

<p>To ensure a consistent counting pattern (A)</p> Signup and view all the answers

<p>The volume of the average red cell in a given sample of blood, expressed in femtoliters (fl) (B)</p> Signup and view all the answers

<p>The patient's red blood cells are smaller than normal. (A)</p> Signup and view all the answers

<p>Mean Platelet Volume (MPV) (A)</p> Signup and view all the answers

<p>To transport oxygen from the lungs to the tissues and remove carbon dioxide from the tissues to the lungs (B)</p> Signup and view all the answers

<p>N x D/A x 10 x 10^6 (C)</p> Signup and view all the answers

<p>Dehydration (D)</p> Signup and view all the answers

<p>Immune system stimulation (A)</p> Signup and view all the answers

<p>Suppression of the immune system (A)</p> Signup and view all the answers

<p>4.0-5.5 x 10^6 (B)</p> Signup and view all the answers

<p>Total number of red blood cells counted (A)</p> Signup and view all the answers

<p>Decrease in white blood cell count (D)</p> Signup and view all the answers

<p>34-42% (C)</p> Signup and view all the answers

<p>42-52% (B)</p> Signup and view all the answers

<p>To count the number of blood cells in a sample (B)</p> Signup and view all the answers

<p>All of the above (D)</p> Signup and view all the answers

<p>A small, rectangular chamber with a grid pattern (B)</p> Signup and view all the answers

A device used to measure hemoglobin concentration in blood.

The percentage of blood volume occupied by red blood cells.

Hematocrit value is usually three times the hemoglobin concentration.

Pregnancy may alter hemoglobin and hematocrit levels; often low hemoglobin and high hematocrit.

The process of assessing treatment effectiveness for anemia using hemoglobin measurement.

A measure of the number of platelets in blood, important for clotting.

The percentage of red blood cells in blood, varies by age and sex.

A device used for counting blood cells and other cells under a microscope.

Uses hemocytometer for counting sperm and bacteria in samples.

Hemocytometer can also evaluate cells in CSF but is referred differently.

16-23 g/dL or 160-230 g/L. Typical range for newborns.

10-14 g/dL or 100-140 g/L. Range for children.

13-17 g/dL or 130-170 g/L. Typical range for adult males.

A method for determining hematocrit using a tube and naked eye.

A microscope lens used for detailed viewing, specifically for counting cells.

Count WBCs in four large corner squares using a specific snake-like approach.

RBCs are counted in the center square and its corners, usually with a specific pattern.

Safety precaution to prevent ingesting biological samples while using pipettes.

Count WBCs from left to right, moving down to the next row in a snake-like direction.

Cells on the upper and left lines are counted, while cells on bottom and right lines are not.

Used to absorb blood and mix it with a diluent for CBC analysis.

RBC count is the average of counted RBCs multiplied by dilution, depth factor, and area.

Volume of the average red blood cell in blood, expressed in femtoliters.

Normal values for MCV are between 80 to 100 fl or μm3.

Average amount of hemoglobin per red blood cell, measured in picograms.

Normal values for MCH are between 27 to 32 pg or μg.

Concentration of hemoglobin in a given volume of packed red blood cells, expressed as a percentage.

Total RBC count is calculated by counting cells and multiplying by 10,000.

An increase in WBC count due to infection, leukemia, or exercise.

May occur due to pathologic conditions or physiological responses.

A decrease in the total number of WBCs, also called leukocytopenia.

Can result from viral infections like HIV or chemotherapy.

D = dilution of blood in the RBC count formula.

A = total area counted in mm² for RBC calculation.

Normal RBC count for females is 4.0-5.5 x 10^6 RBCs/mm³.