AUBF MOCK PRELIM LAB EXAM

Question 1

The hazard posed by exposure to pathogens
a. Chemical Hazard
b. Fire Hazard
c. Biological Hazard
d. Health Hazard

Answer 1

C

Question 2

The NPFA classification symbol contains information on all of the following except:
a. Fire hazards
b. Biohazards
c. Reactivity
d. Health hazard

Answer 2

B

Question 3

Hazy should be reported as
a. Cannot be seen
b. Easily seen
c. Blurred
d. Cloudy

Answer 3

B

Question 4

Which is/ are true about Ketones EXCEPT:
a. Principle: double indicator system
b. 45s reaction time
c. Sensitive for light
d. All of the above

Answer 4

D

Question 5

Container for SHARPS hazard
a. Yellow container with triad symbol
b. Green Puncture proof container
c. All of the above
d. None of the above

Answer 5

D

Question 6

What the purpose and the analyte confirmed by the SSA precipitation test?
a. Degree of turbidity – blood
b. Copper reduction – glucose
c. Degree of turbidity – proteins
d. Oxidation of detergents – ketones

Answer 6

C

Question 7

Refractometers are calibrated using:
a. Distilled water and protein
b. Distilled water and blood
c. Distilled water and sodium chloride
d. Distilled water and urea

Answer 7

C

Question 8

Freshly voided normal urine is usually clear; however, if it is alkaline, a white turbidity may be present due to:
A. Amorphous phosphates and carbonates
B. Uroerythrin
C. WBCs
D. Yeast

Answer 8

A

Question 9

The primary cause of a false-negative bilirubin reaction is:
a. Highly pigmented urine
b. Specimen contamination
c. Specimen exposure to light
d. Excess conjugated bilirubin

Answer 9

C

Question 10

Bile mediations may cause the urine to have __
a. Silver or milky
b. Hazy
c. Colorless
d. Yellow foam

Answer 10

D

Question 11

In transparency, “TURBID“ should be reported as
a. print cannot be seen
b. Easily seen
c. Blurred
d. Cloudy

Answer 11

A

Question 12

Which is NOT TRUE about specimen collection EXCEPT?
a. at least 40ml
b. Wide mouthed; screw cap
c. Labeled at the body of the container
d. all of the above

Answer 12

B

Question 13

Specific gravity is important for
a. Small urea molecules
b. Ability of kidney reabsorption
c. Abnormalities pf ADH
d. 2 of the above

Answer 13

D

Question 14

What is the principle of Urinometer in determining specific gravity?
a. Optimal light scatter
b. Reflective photometry
c. Absorbance and intensity
d. Density

Answer 14

D

Question 15

In physical exam of urine, which is NOT part of the reporting EXCEPT:
a. Sediments
b. Contamination of hair
c. Turbidity
d. None of the above

Answer 15

D

Question 16

Which conditions may give a positive reaction for Benedict’s test?
a. Hyperglycemia
b. Diabetes Miletus
c. Oliguria
d. 2 of the above

Answer 16

D

Question 17

Grounds for specimen acceptance EXCEPT?
a. Specimens contaminated with feces or toilet paper
b. Specimens in containers that are unlabeled or improperly labeled
c. At least 50 ml
d. 2 of the above

Answer 17

D

Question 18

Which are NOT known as purpose for Urinalysis EXCEPT?
a. Drug Testing
b. Determination of metabolic functions
c. Monitoring of the effectiveness of therapy
d. All of the above

Answer 18

D

Question 19

Specimen for urinalysis has the specimen integrity of?
a. 90 mins
b. 30 mins
c. 150 mins
d. 120 mins

Answer 19

D

Question 20

Which part of physical examination of urine gives the least amount of significance?
a. Color
b. Transparency
c. Specific gravity
d. Odor

Answer 20

D

Question 21

Specimen of Diabetes Miletus patient may have
a. Concentrated, clear urine
b. Pale yellow color, hazy urine
c. Ammoniacal odor, orange color
d. Fruity odor, pale yellow color

Answer 21

D

Question 22

What is the purpose of the automated reagent strip reader?
a. Time efficiency
b. Comparison of color reaction in manually may be subjective
c. Follows the principle of reflective photometry
d. 2 of the above

Answer 22

D

Question 23

Brown black color of urine indicates
a. Hematuria
b. Methhemoglobin
c. Proteinuria
d. Myoglobin

Answer 23

B

Question 24

Principle for Benedicts test
a. Oxidation of protein
b. Correlation to ketones
c. Reduction of sucrose
d. Confirmatory test for glucose

Answer 24

D

Question 25

Quality control of reagent strip bottle must be done a. Every week b. Every 24hr shift c. Every opening new bottle d. 2 of the above

Answer 25

D

Question 26

Which are NOT considered grounds for specimen rejection EXCEPT? i. At least 40 ml ii. adulterated urine for drug testing iii. label only on lid of container iv. Same full name of another patient v. written policies for rejection a. I only b. II, III. V c. All of the above d. I,II,III, V

Answer 26

D

Question 27

What is the appropriate volume for microscopic examination a. 20ml b. 15 ml c. 12 ml d. 30ml

Answer 27

C

Question 28

Reagent used for Exton’s test a. 5 % glacial acetic acid b. 2-3 drops SSA c. 2ml of SSA d. 3% of Acetic acid

Answer 28

D

Question 29

Type of specimen best for pregnancy testing? a. Midstream clean catch b. Random specimen c. Suprapubic aspiration d. First morning

Answer 29

D

Question 30

In urine clarity, which is properly paired? a. Milky - print easily seen b. Turbid- blurred c. Hazy – Print easily seen d. Cloudy - may precipitate

Answer 30

C

Question 31

Ascorbic acid intake may interfere the determination of what component of the reagent strip? a. Glucose b. Urobilinogen c. Protein d. Ketones

Answer 31

A

Question 32

The reason for the pigment amber color of normal urine a. Urochrome b. Urobilin c. Bilirubin d. Urobilinogen

Answer 32

A

Question 33

The reading of distilled water by the refractometer is 1.003. You should: a. Subtract 1.003 from each specimen reading b. Add 1.003 to each specimen reading c. Use a new refractometer d. Adjust set screw

Answer 33

D

Question 34

For specimen preservation, it is important to consider a. Room temp for 24hrs – urine culture b. Refrigeration may cause precipitation of crystals c. Room temp – chemical testing d. 2 of the above

Answer 34

D

Question 35

An employee who is accidentally exposed to a possible blood-borne pathogen should immediately: a. Report to a supervisor b. Flush the area with water c. Clean the area with disinfectant d. Receive HIV propylaxis

Answer 35

A

Question 36

Which is NOT considered as pathologic in urine EXCEPT? a. Epithelial cells b. Blood c. Bacteria d. 2 of the above

Answer 36

D

Question 37

Which manner of reporting is incorrectly paired EXCEPT? a. Blood – 0.005 b. Specific gravity – 1.020 c. Nitrite – traces d. 2 of the above

Answer 37

D

Question 38

Greiss reaction is associated to which component a. Ph b. Urobilinogen c. Leukocyte esterase d. Nitrite

Answer 38

D

Question 39

Delayed specimen greater than 2hrs may lead to a. Decrease in pH b. Increase of ketones c. Decrease of glucose d. Increase of WBCs

Answer 39

C

Question 40

In Drug specimen collection, pH of 9.0 must be a. Reject because of Dilution b. Reject because of Substitution c. Indication of metabolic acidosis d. Reject because of adulteration

Answer 40

D

Question 41

Specimen with Urinary Tract infection may NOT exhibit the following results EXCEPT a. Positive in Leukocyte esterase b. Transparent / clear c. Dark yellow color d. 2 of the above

Answer 41

D

Question 42

The concentration of a normal urine specimen can be estimated by which of the following? a. Color b. Clarity c. Foam d. Odor

Answer 42

A

Question 43

Reporting for transparency should be done a. Against white background b. In natural light c. Against printed background d. With flash or artificial light

Answer 43

C

Question 44

Green color of urine may indicate a. Polyuria b. Parasitic Infection c. Presence of melanin d. Porphyrins

Answer 44

B

Question 45

Which type of specimen cannot be used for diagnosing UTI for male patients a. Prostatitis Specimen b. 3glass collection c. 2 of the above d. None of the above

Answer 45

C

Question 46

Employees should not work with radioisotopes if they are: a. Wearing contact lenses b. Allergic to iodine c. Sensitive to latex d. Pregnant

Answer 46

D

Question 47

Known advantage/s of refrigeration a method of preservation a. Does not interfere with chemical tests b. Prevents glycolysis c. Excellent sediment preservative d. 2 of the above

Answer 47

A

Question 48

Which may cause glucose in an unpreserved bacteria to decrease? a. Disintegration in diluted urine b. Volatilization c. Glycolysis and bacterial use d. None of the above

Answer 48

C

Question 49

The principle of the reagent strip test for bilirubin is the: a. Diazo reaction b. Ehrlich reaction c. Greiss reaction d. Peroxidase reaction

Answer 49

A

Question 50

Clinical significance of mousy odor a. Tyrosinemia b. Isovaleric acidemia c. MSUD d. Phenylketonuria

Answer 50

D