PRE-TEST_Hematology

For adult capillary puncture:

The tourniquet should be applied ___ above the venipuncture site.

Proper application of the tourniquet:

Blood pressure cuffs can be used as tourniquets. They are used primarily for veins that are difficult to locate. The cuff should be inflated to a pressure of:

In OBESE patients, veins may be neither readily visible nor easy to palpate. Sometimes the use of a blood pressure cuff can aid in locating a vein. The cuff should:

AccuVein is a handheld medical device that helps medical staff visualize veins before phlebotomy. The device emits ___ light and is held 7 INCHES OVER THE POTENTIAL PHLEBOTOMY SITE.

Select the needle most commonly used in standard venipuncture in an adult:

Higher temperatures can cause:

High altitude:

Resting phase:

The cell selected for chromosome analysis is usually in the ___ stage of cellular division.

A patient has a hemoglobin of 12.3 g/dL. What is the expected range for the patient's hematocrit?

Human hematopoietic stem cells express:

Erythropoietin is primarily produced by the:

The average diameter of a normal erythrocyte is ___ μm.

The average adult has ___ g of total iron.

Severe increase in abnormal erythrocytes in each microscopic field; an equivalent descriptive term is MANY:

RBC with membrane folded over:

Increased ESR:

The RDW and MCV are both quantitative descriptors of erythrocyte size. If both are increased, the most probable erythrocytic abnormality would be:

Lazy leukocyte syndrome involves which cell type?

Cells have distinctive nuclear lobulation and have been termed "flower cells"

Reticulated platelets are cylindrical and beaded, resembling fragments of megakaryocyte proplatelet processes:

Effects of platelet clumps in most hematology analyzers:

What reagents are used in the PT test?

The function of thromboplastin in the prothrombin test is to provide ___ to the assay.

If a child ingested rat poison, which of the following tests should be performed to test the effect of the poison on the child's coagulation mechanism?

Reference values for PTT in adults:

Typical PTT therapeutic range:

A fresh blood sample was sent to the laboratory at 8:00 a.m. for a PT test. At 4:00 p.m., the doctor requested an APTT test to be done on the same sample. What should the technologist do?

A plasma sample submitted to the lab for PT testing has been stored for 25 hours at 4°C. The PT result is shortened. What is the most probable cause?

Hemophilia A:

Factor X deficiency:

Factor I deficiency:

What is C in VCS technology?