Question 1

A technologist is performing differentials and notices that all the slides he has reviewed appear pink. What is the best way to correct this problem?

Accepted Answer

A)  Change the buffer so that it is more acidic 
B)  Change the buffer so that it is more alkaline 
C)  Clean the slides and make a new smear 
D)  Filter the stain used 
A)  Change the buffer so that it is more acidic 
B)  Change the buffer so that it is more alkaline 
C)  Clean the slides and make a new smear 
D)  Filter the stain used

Question 2

A panel of cytochemical stains is performed to determine a patient's subtype of AML. Myeloperoxidase and Sudan Black B are positive. Specific esterase is positive and nonspecific esterase o is negative. Based on this information, what lineage is implicated as the chosen subtype of AML?

Accepted Answer

A)  Lymphoid 
B)  Myeloid 
C)  Monocytic 
D)  Erythroid 
A)  Lymphoid 
B)  Myeloid 
C)  Monocytic 
D)  Erythroid

Question 3

A sickle solubility test is requested STAT on a 45-year-old patient who is to have surgery very soon. The technologist receives the sample and immediately takes the reagent out from the refrigerator and performs the test. It comes back positive. The surgery is postponed until hemoglobin electrophoresis is performed, and it shows a normal distribution of adult hemoglobins. What is the most likely reason for the discrepant result?

Accepted Answer

A)  There was a false positive on the sickle solubility test because of the cold reagent. 
B)  The hemoglobin electrophoresis findings need to be confirmed on acid gel. 
C)  There was a false negative on the sickle solubility test because of inadequate mixing. 
D)  The wrong patient was drawn. 
A)  There was a false positive on the sickle solubility test because of the cold reagent. 
B)  The hemoglobin electrophoresis findings need to be confirmed on acid gel. 
C)  There was a false negative on the sickle solubility test because of inadequate mixing. 
D)  The wrong patient was drawn.

Question 4

Given an RBC count of 3.25 × 1012/L, a hemoglobin of 9.0 g/dL, and a hematocrit of 25%, how will the red cells appear under PB smear examination?

Accepted Answer

A)  Normocytic 
B)  Macrocytic 
C)  Microcytic 
D)  Hyperchromic 
A)  Normocytic 
B)  Macrocytic 
C)  Microcytic 
D)  Hyperchromic

Exam 37: Hematology Procedures

A technologist is performing differentials and notices that all the slides he has reviewed appear pink. What is the best way to correct this problem?

A panel of cytochemical stains is performed to determine a patient's subtype of AML. Myeloperoxidase and Sudan Black B are positive. Specific esterase is positive and nonspecific esterase o is negative. Based on this information, what lineage is implicated as the chosen subtype of AML?

Given an RBC count of 3.25 × 1012/L, a hemoglobin of 9.0 g/dL, and a hematocrit of 25%, how will the red cells appear under PB smear examination?

Introduction

Cellular Homeostasis

Structure and Function of Hematopoietic Organs

Hematopoiesis

The Erythrocyte

Hemoglobin

Granulocytes and Monocytes

Lymphocytes

The Platelet

The Complete Blood Count and Peripheral Blood Smear Evaluation

Introduction to Anemia

Anemias of Disordered Iron Metabolism and Heme Synthesis

Hemoglobinopathies: Qualitative Defects

Thalassemia

Megaloblastic and Nonmegaloblastic Macrocytic Anemias

Hypoproliferative Anemias

Hemolytic Anemia: Membrane Defects

Hemolytic Anemia: Enzyme Deficiencies

Hemolytic Anemia: Immune Anemias

Hemolytic Anemia: Nonimmune Defects

Nonmalignant Disorders of Leukocytes: Granulocytes and Monocytes

Nonmalignant Lymphocyte Disorders

Introduction to Hematopoietic Neoplasms

Myeloproliferative Neoplasms

Myelodysplastic Syndromes

Acute Myeloid Leukemias

Precursor Lymphoid Neoplasms

Mature Lymphoid Neoplasms

Hematopoietic Stem Cell Transplantation

Morphologic Analysis of Body Fluids in the Hematology

Primary Hemostasis

Secondary Hemostasis and Fibrinolysis

Disorders of Primary Hemostasis

Disorders of Secondary Hemostasis

Thrombophilia

Hemostasis: Laboratory Testing and Instrumentation

Bone Marrow Examination

Automation in Hematology

Flow Cytometry

Chromosome Analysis of Hematopoietic and Lymphoid Disorders

Molecular Analysis of Hematologic Diseases

Quality Assessment in the Hematology Laboratory

Filters

Given an RBC count of 3.25 × 10¹²/L, a hemoglobin of 9.0 g/dL, and a hematocrit of 25%, how will the red cells appear under PB smear examination?