Exam 14: Routine and Point-Of-Care Testing in Hematology: Manual and Semiautomated Methods

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The platelet count from the automated cell counter is 80 * 10⁹/L. Platelet satellites around neutrophils are observed on the blood film estimate. A sodium citrate tube is drawn, and the count reads 300 10⁹/L from the cell counter. What platelet count 10⁹/L should be reported?

(Multiple Choice)

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Question 21

Which of the following red cell indices support microcytic hypochromic red cell morphology?

(Short Answer)

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Question 22

A hemoglobin of 19 g/dL is normal for which of the following patients?

(Multiple Choice)

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Question 23

For which patient is a hemoglobin of 10.5 g/dL normal?

(Multiple Choice)

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Question 24

Manual cell counting methods in automated hematology laboratories are used for all of the following except:

(Multiple Choice)

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Question 25

In the center square on one side of a hemocytometer, 100 platelets were found; 200 were found in the center square on the other side. Select the best course of action.

(Multiple Choice)

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Question 26

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 * 10^12/L, and the hematocrit is 30%. Calculate the MCV.

(Multiple Choice)

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Question 27

Why is it important to have a scrupulously clean hemocytometer when manually counting platelets?

(Multiple Choice)

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Question 28

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 *10^12/L, and the hematocrit is 30%. Calculate the corrected reticulocyte count.

(Multiple Choice)

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Question 29

Interpret the following results (all tests performed manually) on an adult female named Mary Jones. RBC: 3.22*10¹²/L Hemoglobin: 16.0 g/dL Hematocrit: 30.0%

(Multiple Choice)

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Question 30

Diagnostic testing at or near the site of patient care is known as:

(Multiple Choice)

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Question 31

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 * 10^12/L, and the hematocrit is 30%. Using information determined from Questions 23 through 27, what is the correct interpretation for this patient's condition?

(Multiple Choice)

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Question 32

Ten nucleated red blood cells (NRBCs) are found in a blood film when differentiating 100 white cells. What is the corrected white blood count if the automated cell counter printed a count of 10.0* 10⁹/L?

(Multiple Choice)

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Question 33

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 * 10^12/L, and the hematocrit is 30%. Calculate the reticulocyte production index (RPI).

(Multiple Choice)

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Question 34

The following RBC indices are obtained on a patient when calculated using results from manual methods: MCV: 73 fL MCH: 24 pg MCHC: 33.4 g/dL When the stained blood film is evaluated, the RBCs are normocytic normochromic. What conclusion can be made from this information?

(Multiple Choice)

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Question 35

Which of the following can cause a falsely increased ESR?

(Multiple Choice)

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Question 36

Any of the following could be an explanation for the invalid hemoglobin for Mary Jones (Questions 13 through 16) except:

(Multiple Choice)

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Question 37

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Exam 14: Routine and Point-Of-Care Testing in Hematology: Manual and Semiautomated Methods

The platelet count from the automated cell counter is 80 * 109/L. Platelet satellites around neutrophils are observed on the blood film estimate. A sodium citrate tube is drawn, and the count reads 300 *109/L from the cell counter. What platelet count * 109/L should be reported?

Which of the following red cell indices support microcytic hypochromic red cell morphology?

A hemoglobin of 19 g/dL is normal for which of the following patients?

For which patient is a hemoglobin of 10.5 g/dL normal?

Manual cell counting methods in automated hematology laboratories are used for all of the following except:

In the center square on one side of a hemocytometer, 100 platelets were found; 200 were found in the center square on the other side. Select the best course of action.

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 * 1012/L, and the hematocrit is 30%. Calculate the MCV.

Why is it important to have a scrupulously clean hemocytometer when manually counting platelets?

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 *1012/L, and the hematocrit is 30%. Calculate the corrected reticulocyte count.

Interpret the following results (all tests performed manually) on an adult female named Mary Jones. RBC: 3.22*1012/L Hemoglobin: 16.0 g/dL Hematocrit: 30.0%

Diagnostic testing at or near the site of patient care is known as:

Ten nucleated red blood cells (NRBCs) are found in a blood film when differentiating 100 white cells. What is the corrected white blood count if the automated cell counter printed a count of 10.0* 109/L?

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 * 1012/L, and the hematocrit is 30%. Calculate the reticulocyte production index (RPI).

The following RBC indices are obtained on a patient when calculated using results from manual methods: MCV: 73 fL MCH: 24 pg MCHC: 33.4 g/dL When the stained blood film is evaluated, the RBCs are normocytic normochromic. What conclusion can be made from this information?

Which of the following can cause a falsely increased ESR?

Any of the following could be an explanation for the invalid hemoglobin for Mary Jones (Questions 13 through 16) except:

An Overview of Clinical Laboratory Hematology

Safety in the Hematology Laboratory

Specimen Collection

Care and Use of the Microscope

Quality Assurance in Hematology and Hemostasis Testing

Cellular Structure and Function

Hematopoiesis

Erythrocyte Production and Destruction

Energy Metabolism and Membrane Physiology of the Erythrocyte

Hemoglobin Metabolism

Iron Metabolism

Leukocyte Development, Kinetics, and Functions

Platelet Production, Structure, and Function

Examination of the Peripheral Blood Film and Correlation With the Complete Blood Count

Bone Marrow Examination

Body Fluids in the Hematology Laboratory

Anemias: Red Blood Cell Morphology and Approach to Diagnosis

Disorders of Iron and Heme Metabolism

Anemias Caused by Defects of Dna Metabolism

Bone Marrow Failure

Introduction to Increased Destruction of Erythrocytes

Intrinsic Defects Leading to Increased Erythrocyte Destruction

Extrinsic Defects Leading to Increased Erythrocytedestructionnonimmune Causes

Extrinsic Defects Leading to Increased Erythrocytedestructionimmune Causes

Hemoglobinopathies Structural Defects in Hemoglobin

Thalassemias

Nonmalignant Leukocyte Disorders

Introduction to Leukocyte Neoplasms

Cytochemistry

Cytogenetics

Molecular Diagnostics in the Clinical Laboratory

Flow Cytometric Analysis in Hematologic Disorders

Myeloproliferative Neoplasms

Myelodysplastic Syndromes

Acute Leukemias

Mature Lymphoid Neoplasms

Pediatric and Geriatric Hematology

Automated Cell-Counting Instrumentation

Normal Hemostasis and Coagulation

Hemorrhagic Coagulation Disorders

Thrombosis Risk Testing

Thrombocytopenia and Thrombocytosis

Qualitative Disorders of Platelets and Vasculature

Laboratory Evaluation of Hemostasis

Monitoring Antithrombotic Therapies

Coagulation Instrumentation

Filters

The platelet count from the automated cell counter is 80 * 10⁹/L. Platelet satellites around neutrophils are observed on the blood film estimate. A sodium citrate tube is drawn, and the count reads 300 10⁹/L from the cell counter. What platelet count 10⁹/L should be reported?

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 * 10^12/L, and the hematocrit is 30%. Calculate the MCV.

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 *10^12/L, and the hematocrit is 30%. Calculate the corrected reticulocyte count.

Interpret the following results (all tests performed manually) on an adult female named Mary Jones. RBC: 3.22*10¹²/L Hemoglobin: 16.0 g/dL Hematocrit: 30.0%

Ten nucleated red blood cells (NRBCs) are found in a blood film when differentiating 100 white cells. What is the corrected white blood count if the automated cell counter printed a count of 10.0* 10⁹/L?

On a standard reticulocyte preparation with new methylene blue, 100 cells are counted containing blue-stained granulofilamentous material. The red blood count is 3.22 * 10^12/L, and the hematocrit is 30%. Calculate the reticulocyte production index (RPI).