Specimen Collection Techniques 100
Question Practice Exam With Correct
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1. Which action is most important before collecting any patient
specimen?
A. Label the specimen container after collection
B. Verify the patient’s identity using two identifiers
C. Place the specimen in the refrigerator immediately
D. Ask the patient to sign a consent form
Correct Answer: B. Verify the patient’s identity using two
identifiers
Rationale: Correct patient identification is the most critical step in
specimen collection. Using two identifiers, such as the patient’s full
name and date of birth, reduces the risk of specimen errors and
ensures accurate diagnosis and treatment. Labeling and storage are
also important, but patient identification must occur first.
2. Which type of specimen is commonly collected to diagnose
urinary tract infections?
,A. Stool specimen
B. Sputum specimen
C. Midstream urine specimen
D. Blood culture
Correct Answer: C. Midstream urine specimen
Rationale: A midstream urine specimen is commonly collected to
diagnose urinary tract infections because it minimizes contamination
from external genital flora. Proper cleansing and collection techniques
improve specimen accuracy and reliability.
3. What is the primary purpose of wearing gloves during
specimen collection?
A. To make the procedure faster
B. To prevent contamination and protect against infection
C. To improve patient comfort
D. To reduce laboratory costs
Correct Answer: B. To prevent contamination and protect against
infection
Rationale: Gloves are essential personal protective equipment that
protect both the healthcare worker and the patient from the
transmission of microorganisms. They also reduce the risk of
contaminating the specimen.
4. Which specimen should generally be collected early in the
morning for the best diagnostic results?
A. Random urine specimen
B. Sputum specimen
C. Stool specimen
D. Blood glucose specimen
Correct Answer: B. Sputum specimen
,Rationale: Early morning sputum specimens are preferred because
respiratory secretions accumulate overnight, increasing the likelihood
of obtaining an adequate sample for detecting respiratory pathogens
such as tuberculosis.
5. Which action is appropriate when labeling a specimen
container?
A. Label the container after leaving the patient’s room
B. Use only the patient’s room number
C. Label the specimen in the presence of the patient
D. Allow another healthcare worker to label the specimen later
Correct Answer: C. Label the specimen in the presence of the
patient
Rationale: Specimens should be labeled immediately and in the
patient’s presence to reduce identification errors. Essential
information usually includes the patient’s name, identification
number, date, time, and collector’s initials.
6. Which urine specimen is collected without regard to the time of
day?
A. Timed urine specimen
B. First-morning urine specimen
C. Random urine specimen
D. Sterile urine specimen
Correct Answer: C. Random urine specimen
Rationale: A random urine specimen may be collected at any time and
is commonly used for routine screening tests. It is convenient but may
be less accurate for certain analyses compared with timed or first-
morning specimens.
, 7. What is the recommended action if a sterile specimen becomes
contaminated?
A. Send it to the laboratory anyway
B. Add disinfectant to the specimen
C. Discard the specimen and recollect it
D. Ask the laboratory to clean the specimen
Correct Answer: C. Discard the specimen and recollect it
Rationale: Contaminated sterile specimens can lead to inaccurate
results and improper treatment. The correct action is to discard the
contaminated specimen and obtain a new sterile sample using proper
technique.
8. Which instruction should be given before collecting a clean-
catch urine specimen?
A. Drink as little fluid as possible
B. Void directly into the specimen cup immediately
C. Cleanse the genital area before urinating
D. Collect the first urine passed
Correct Answer: C. Cleanse the genital area before urinating
Rationale: Cleansing the genital area reduces contamination from
skin flora and improves the accuracy of urine culture results. The
patient should also collect the midstream portion of urine.
9. Which type of specimen requires strict sterile technique during
collection?
A. Stool specimen
B. Sputum specimen
C. Wound culture specimen
D. Hair specimen
Question Practice Exam With Correct
Verified Solutions | Already Graded
A+ | 100 % Correct | 2026 Latest
Update!!!
1. Which action is most important before collecting any patient
specimen?
A. Label the specimen container after collection
B. Verify the patient’s identity using two identifiers
C. Place the specimen in the refrigerator immediately
D. Ask the patient to sign a consent form
Correct Answer: B. Verify the patient’s identity using two
identifiers
Rationale: Correct patient identification is the most critical step in
specimen collection. Using two identifiers, such as the patient’s full
name and date of birth, reduces the risk of specimen errors and
ensures accurate diagnosis and treatment. Labeling and storage are
also important, but patient identification must occur first.
2. Which type of specimen is commonly collected to diagnose
urinary tract infections?
,A. Stool specimen
B. Sputum specimen
C. Midstream urine specimen
D. Blood culture
Correct Answer: C. Midstream urine specimen
Rationale: A midstream urine specimen is commonly collected to
diagnose urinary tract infections because it minimizes contamination
from external genital flora. Proper cleansing and collection techniques
improve specimen accuracy and reliability.
3. What is the primary purpose of wearing gloves during
specimen collection?
A. To make the procedure faster
B. To prevent contamination and protect against infection
C. To improve patient comfort
D. To reduce laboratory costs
Correct Answer: B. To prevent contamination and protect against
infection
Rationale: Gloves are essential personal protective equipment that
protect both the healthcare worker and the patient from the
transmission of microorganisms. They also reduce the risk of
contaminating the specimen.
4. Which specimen should generally be collected early in the
morning for the best diagnostic results?
A. Random urine specimen
B. Sputum specimen
C. Stool specimen
D. Blood glucose specimen
Correct Answer: B. Sputum specimen
,Rationale: Early morning sputum specimens are preferred because
respiratory secretions accumulate overnight, increasing the likelihood
of obtaining an adequate sample for detecting respiratory pathogens
such as tuberculosis.
5. Which action is appropriate when labeling a specimen
container?
A. Label the container after leaving the patient’s room
B. Use only the patient’s room number
C. Label the specimen in the presence of the patient
D. Allow another healthcare worker to label the specimen later
Correct Answer: C. Label the specimen in the presence of the
patient
Rationale: Specimens should be labeled immediately and in the
patient’s presence to reduce identification errors. Essential
information usually includes the patient’s name, identification
number, date, time, and collector’s initials.
6. Which urine specimen is collected without regard to the time of
day?
A. Timed urine specimen
B. First-morning urine specimen
C. Random urine specimen
D. Sterile urine specimen
Correct Answer: C. Random urine specimen
Rationale: A random urine specimen may be collected at any time and
is commonly used for routine screening tests. It is convenient but may
be less accurate for certain analyses compared with timed or first-
morning specimens.
, 7. What is the recommended action if a sterile specimen becomes
contaminated?
A. Send it to the laboratory anyway
B. Add disinfectant to the specimen
C. Discard the specimen and recollect it
D. Ask the laboratory to clean the specimen
Correct Answer: C. Discard the specimen and recollect it
Rationale: Contaminated sterile specimens can lead to inaccurate
results and improper treatment. The correct action is to discard the
contaminated specimen and obtain a new sterile sample using proper
technique.
8. Which instruction should be given before collecting a clean-
catch urine specimen?
A. Drink as little fluid as possible
B. Void directly into the specimen cup immediately
C. Cleanse the genital area before urinating
D. Collect the first urine passed
Correct Answer: C. Cleanse the genital area before urinating
Rationale: Cleansing the genital area reduces contamination from
skin flora and improves the accuracy of urine culture results. The
patient should also collect the midstream portion of urine.
9. Which type of specimen requires strict sterile technique during
collection?
A. Stool specimen
B. Sputum specimen
C. Wound culture specimen
D. Hair specimen
