Lab Specimens & Microscopy Final
When performing duplicate testing in a manual analysis, what is the acceptable % within which the 2 results should match?
10%
When performing a blood cell differential, how many WBC's are typically counted in order to establish a %?
100
What is the proper ratio between anticoagulant and plasma in an acceptable patient specimen collected in NaCitrate for coagulation testing.
1:9
When performing laboratory work, all of the following are true concerning handwashing EXCEPT:
Hand antiseptic is not needed if gloves were worn.
Individuals with Hemophilia B have a deficiency of which factor?
IX
PT/INR detects abnormalities in which of the following?
all of the above. extrinsic pathway. common pathway. warfarin treatment. vitamin K deficiency
The meaning of the suffix -opathy is:
disease
A patient with an artificial heart valve could have damaged red blood cells called:
keratocytes
Mycology, the study of fungi, is a subset of which major area of the clinical laboratory?
microbiology
The extent to which duplicate results, or a set of repeated results of the same analysis, may be reproduced is referred to as:
precision
Glassware with chips or cracks:
should be discarded
T or F. The field of medical technology began 50 years ago.
False
T or F. The gram is a metric unit of volume.
False
The abbreviation for microgram is:
µg
T or F.If a worker is careful, it is not necessary to wear a mask and gloves when weighing caustic chemicals.
False
If a 2 M solution is diluted 1:10, which of the following is true?
The concentration of the dilution is 0.2 M.
T or F. Microscopes should be transported by firmly grasping the stage and oculars.
False
A tech needs to count a pleural fluid for the WBC using a hemocytometer. The fluid is prepared using a 1:100 dilution. The results counted are as follows, counting the 4 large squares on each side: Side 1: 42, 45, 51, 31 Side 2: 46, 39, 50, 48 Which answer is correct when reporting the WBC?
4.36 x 104
All of these statements are true concerning quality assessment in preparation of reagents EXCEPT:
Beakers and Erlenmeyer flasks are used to measure ingredients.
Which of the following agencies is responsible for accreditation of the clinical laboratory?
CAP
T or F. The National Institute for Occupational Safety and Health (NIOSH) is involved in overseeing clinical laboratory operations and enforcing safety regulations.
False
Fever of unknown origin is abbreviated by using the letters:
FUO
T or F. Idiopathic thrombocytopenic purpura (ITP) is an inherited platelet disorder.
False
T or F. If blood flow is slow, the tip of the fingertip can be squeezed to increase flow
False
All of the following statements are true of the APTT EXCEPT:
It is used to monitor all oral anticoagulant therapy.
The defining difference between the MLT and MLS is
Level of certification and Licensure
Platelets are generated from which "mother cell?"
Megakaryocyte
Which of the following agencies is responsible for accreditation of Clinical Laboratory Training Programs such as MLT ans MLS?
NAACLS
One agency that accredits educational programs for clinical laboratory personnel is the:
National Accrediting Agency for Clinical Laboratory Sciences (NAACLS)
The agency responsible for dictates of safety in the clinical laboratory is:
OSHA
Which of the following proteins is responsible for initiating fibrinolysis?
Plasmin
All of the following are ESR methods EXCEPT:
Quick's ESR
The prefix that means under is:
SUB-
All of the following are appropriate safety measures to incorporate into laboratory procedures EXCEPT:
Store chemicals in alphabetical order so they can be easily found.
All of the following are true concerning laboratory balances EXCEPT:
The weighing pan should be cleaned once a day.
Which is true of red cells in iron deficiency anemia?
They are hypochromic.
T or F. An example of an analytical factor that can affect the actual test procedure is an interfering substance in the patient's specimen.
True
T or F. Clinical laboratory personnel work as "medical detectives."
True
T or F. Coagulation testing is used to determine the reasons for unwanted thrombosis or unexplained bleeding.
True
T or F. Some POCT coagulation instruments can be used at home by the patient.
True
T or F. The coarse adjustment can be used with the 10X and 40X objectives but not with the 100X objective.
True
T or F. The term clinical laboratory science largely replaced medical technology for several years.
True
T or F.A patient's hands can be placed in warm water for a few minutes to enhance circulation.
True
T or F.Certain bacterial and fungal infections can cause DIC.
True
T or F.The vitamin-K-dependent coagulation factors are II, VII, IX, and X.
True
True or False: Standard Precautions is a comprehensive set of safety guidelines for healthcare workers which includes components of BOTH Universal Precautions and BSI guidelines.
True
Which of the following is a safety rule in the laboratory?
Wear safety goggles when working with strong chemicals.
Which of the following statements is true of the hemacytometer?
When viewed from the top, it has two polished raised platforms.
The stem that means skin is:
cut
The Fahrenheit scale has the:
freezing point of water at 32°
The suffix "itis" refers to a condition of:
inflammation
When selecting a diluent for the purpose of counting wbc's or platelets, what is of key importance?
that rbc's are lysed
