ASCP ASCP-MLT Online Practice Questions and Exam Preparation

ASCP ASCP-MLT Online Questions & Answers

• Question 341:

  One agency that accredits education programs for clinical laboratory personnel is the:

  A. North Central Association (NCA)
  B. American Society for Clinical Laboratory Science (ASCLS)
  C. National Accrediting Agency for Clinical Laboratory Sciences (NAACLS)
  D. American Society for Clinical Pathology (ASCP)
  C. National Accrediting Agency for Clinical Laboratory Sciences (NAACLS)

• Question 342:

  The most common specimen analyzed in the hematology section is:

  A. plasma.
  B. whole blood.
  C. urine.
  D. serum.
  B. whole blood.

• Question 343:

  In which disorder do neonates demonstrate the presence of Bart's hemoglobin that changes to beta chain tetramers in adults?

  A. Alpha thalassemia major
  B. Alpha thalassemia minor
  C. Hemoglobin H disease
  D. Hydrops fetalis
  C. Hemoglobin H disease

• Question 344:

  Mode is defined as the number that occurs most frequently in a set of numbers. The value that occurs most frequently in a set of results or values would be termed:

  A. Mean
  B. Median
  C. Mode
  D. Standard deviation
  C. Mode

• Question 345:

  The end of the initial phase of HH treatment is considered when the serum ferritin decreases to between 20 and 50 ng/mL.

  What is a typical finding for determining the endpoint for the initial or iron-depletion phase of treatment for hereditary hemochromatosis (HH)?

  A. The serum ferritin decreases to between 20 and 50 ng/mL
  B. The hepatic iron index returns to normal
  C. The transferrin saturation drops below 20%
  D. The serum iron falls to below 35 g/dL.
  A. The serum ferritin decreases to between 20 and 50 ng/mL

• Question 346:

  The red portion of the NFPA diamond represents fire hazards. The fire classification system for NFPA is as follows:

  0 - Will not burn

  1 - Must be preheated for ignition; flashpoint above 200°F (93°C)

  2 - Must be moderately heated for ignition, flashpoint above 100°F (38°C)

  3 - Ignition may occur under most ambient conditions, flashpoint below 100°F (38°C)

  4 - Extremely flammable and will readily disperse through air under standard conditions, flashpoint below 73°F (23°C)

  A laboratory labels its secondary containers of hazardous chemicals using a color-coded system, with a different color representing each different type of hazard. The coding system follows the color-coding used by the National Fire

  Protection Agency's "fire diamond." What hazard would be represented by the red section on the hazard label?

  A. Health hazard
  B. Fire hazard
  C. Reactivity hazard
  D. Special hazards
  B. Fire hazard

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  Explanation/Reference:

• Question 347:

  The Clinical Laboratory and Standards Institure (CLSI) recommends that all patient specimens are delivered to the laboratory no more than 2 hours after collection to reduce pre-examination variables caused by cellular action and the effects

  of prolonged exposure of specimens to room temperatures, such as:

  Question options:

  A. leakage of coagulation factors into the serum or plasma by cellular metabolism; increased potassium values caused by exposure to room temperature; increased glucose values caused by cellular metabolism
  B. glycolysis caused by leakage from cells; increased levels of coagulation factors caused by prolonged exposure to room temperatures; decreased potassium levels caused by cellular metabolism
  C. glycolysis caused by exposure to room temperatures; hemolysis and leakage of coagulation factors from the cells; decreased potassium levels in the serum and plasma by cellular utilization
  D. glycolysis caused by cells' use of glucose; hemolysis and leakage of potassium from the cells into the plasma or serum; the destruction of coagulation factors from exposure to room temperatures
  D. glycolysis caused by cells' use of glucose; hemolysis and leakage of potassium from the cells into the plasma or serum; the destruction of coagulation factors from exposure to room temperatures

• Question 348:

  Type I hyperlipoproteinemia is a form of hyperlipoproteinemia associated with deficiencies of lipoprotein lipase. Hyperlipoproteinemia type II is the most common form and is classified into type IIa and type IIb, depending on whether there is elevation in the triglyceride level in addition to LDL cholesterol. Hyperlipoproteinemia type III is associated with high chylomicrons and IDL. Hyperlipoproteinemia type IV is assoicated with high triglycerides. It is also known as hypertriglyceridemia. Hyperlipoproteinemia type V is similar to type I, but with high VLDL in addition to chylomicrons.

  An obese adult with premature arteriosclerosis is seen in the clinic. When her serum is tested no chylomicrons are present, LDL are normal and VLDL are increased. There is an increase in triglycerides and slight increase in cholesterol. Lipoprotein electrophoresis reveals a heavy pre-beta band. She has no skin rash and uric acid is increased. This patient has a hyperlipoproteinemia with the MOST likely type of:

  A. II
  B. III
  C. IV
  D. V
  E. VI
  C. IV

• Question 349:

  AHG must be added immediately after washing to prevent the possibility of a false negative; a false negative can occur in this situation because previously bound globulins may dissociate from red cells, leaving insufficient antibody coating on the red cells to produce a reaction, or free antibody may directly neutralize antiglobulin reagent.

  Blood bank

  A false-negative reaction while performing the DAT technique may be the result of:

  A. Red cell/AHG tube is over centrifuged
  B. Blood collected in tube containing silicon gel
  C. Saline used for wash stored in glass or metal container
  D. AHG addition delayed for 40 or more minutes
  D. AHG addition delayed for 40 or more minutes

• Question 350:

  Name the comprehensive written safety plan detailing the proper use and storage of hazardous chemicals in the workplace.

  A. chemical hygiene plan
  B. OSHA
  C. SOP
  D. MSDS
  A. chemical hygiene plan