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LabQ

Total questions: 18

Worksheet time: 9mins

Name

Class

Date

What biosafety level (BSL) is required by the Centers for Disease Control and Prevention (CDC) for working with Mycobacterium tuberculosis if there is a possibility that aerosols might be released?

BSL-1

BSL-2

BSL-3

BSL-4

Aerobic actinomycetes can cause different types of infections. All of the following are acceptable sites for the recovery of aerobic actinomycetes EXCEPT?

Respiratory

Cutaneous

Central Nervous System

Throat

What are the four nitrogenous bases found in RNA?

Adenine, guanine, cytosine, and thymine

Adenine, guanine, cytosine, and uracil

Adenine, guanine, uracil, and thymine

Adenine, uracil, cytosine, and thymine

Which of the following blood tests is used to evaluate kidney function?

Alkaline phosphatase (ALP)

Creatinine

Amylase

Uric acid

Which one of the following factors, if deficient, would cause a prolongation of the PT assay without prolonging the aPTT?

Factor XI

Factor VII

Factor VIII

Factor IX

If the red cell count is known, which of the following MUST also be known in order to calculate the mean corpuscular volume (MCV)?

Hemoglobin

Leukocyte count

Reticulocyte count

Hematocrit

Which of the following is the deferral period following the collection of double red blood cell units?

1 year

16 weeks

8 weeks

4 weeks

Satellitism observed in cultures is most commonly associated with which of the following bacteria?

Neisseria meningitidis

Haemophilus influenzae

Pasteurella canis

Bordetella pertussis

Which of the following might cause a false positive indirect antiglobulin test (IAT)?

Failure to adequately wash cells.

Delay in the addition of antiglobulin reagent.

Over-centrifugation

High concentration of IgG paraprotein in a patient's serum.

10.

Which of the following analytes can be detected by the urine reagent strip in a point-of-care setting?

Yeast, glucose, pH, and blood

Crystals, bilirubin, urobilinogen, and protein

Protein, glucose, leukocytes, and bilirubin

Crystals, yeast, casts, and pH

11.

Each of the cells below can be found in all types of body fluids EXCEPT:

Neutrophils

Macrophage/monocytes

Lymphocytes

Mesothelial cells

12.

The test used for the identification of specific capsular serotypes of Streptococcus pneumoniae is:

Optochin

Bile solubility

Quellung

Hippurate hydrolysis

13.

Which of the following methods is not used for the isolation of mitochondrial DNA (mtDNA)?

Isolation of mitochondria by centrifugation prior to DNA extraction.

Selection of mtDNA from total DNA by hybridization.

Selection of mtDNA from total DNA by PCR.

Use of polyt oligos ligated to magnetic beads.

14.

Significantly increased levels of ketones are typically detected in the urine with all of the following conditions, EXCEPT?

Diabetic acidosis

Excessive carbohydrate loss

Starvation

Following a low-impact exercise routine

15.

The fibrinolytic system may be activated by which one of the following?

Streptokinase

Streptolysin

Fibrin

EDTA

16.

A large container of peritoneal fluid is received in the laboratory (about 50 mL). How should the tech process this sample for aerobic culture?

Use a sterile pipette and add a drop of fluid per agar plate

Insert a swab into the specimen container and inoculate all agar plates

Centrifuge the specimen and use the sediment to inoculate the agar plates

Add 1 mL of saline to 1 mL of fluid, vortex, and inoculate plates

17.

What would the RNA sequence look like if the following DNA sequence was transcribed?

3' ATCGTATCG 5'

5' UAGCAUAGC 3'

5' TAGCATAGC 3'

3' AUCGUAUCG 5'

3' UAGCAUAGC 5'

18.

A tech receives a call from the floor regarding antimicrobial therapy. The patient culture yielded an aerobic Gram-negative bacillus and the physician would like to use an antibiotic that inhibits protein translation. Which of the following antibiotics would be the best choice?

Vancomycin

Levofloxacin

Daptomycin

Tetracycline

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LabQ

Total questions: 18

Worksheet time: 9mins

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