#1
Which of the following is an important consideration when collecting blood specimens for laboratory testing?
Collecting the sample in a non-sterile container
Using a needle larger than 23 gauge for venipuncture
Mixing the sample vigorously after collection
Identifying the patient correctly before collection
#2
When collecting a wound swab for culture and sensitivity testing, what is an essential step to ensure accurate results?
Using a dry swab to collect the sample
Inserting the swab deeply into the wound
Cleaning the wound with saline before collection
Allowing the wound to air dry before collection
#3
What is the appropriate procedure for handling a 24-hour urine collection?
Discarding the first void and collecting subsequent voids for 24 hours
Collecting all urine voids in a single container for 24 hours
Collecting the last void of the day and the first void of the next day
Collecting urine only during waking hours for 24 hours
#4
Which of the following is NOT a proper handling practice for collecting a stool sample for culture?
Collecting the sample in a clean, dry container
Refrigerating the sample until it can be transported to the laboratory
Avoiding contamination with urine or toilet tissue
Collecting the sample after the patient has taken antibiotics
#5
Which of the following is NOT a recommended practice for collecting a stool sample for fecal occult blood testing?
Collecting the sample from different areas of the stool
Avoiding contact with urine or toilet tissue
Mixing the sample with water before collection
Using a clean, dry container for collection
#6
What is the recommended technique for collecting a urine specimen for culture and sensitivity testing?
Collecting the first urine sample of the day
Using a dirty container
Cleaning the urethral meatus before collection
Storing the sample at room temperature for several hours before testing
#7
Which of the following anticoagulants is commonly used for blood specimen collection for coagulation studies?
Sodium citrate
Heparin
EDTA
Sodium fluoride
#8
Which of the following is a proper technique for collecting a throat swab for culture and sensitivity testing?
Touching the swab to the tongue before collecting the sample
Inserting the swab into the mouth without touching the teeth or tongue
Rinsing the mouth with mouthwash before collecting the sample
Using a dry swab to collect the sample
#9
When collecting a sputum specimen for acid-fast bacilli (AFB) testing, what is the preferred method for obtaining the sample?
Collecting the sample in a sterile container without additives
Collecting the sample after the patient has eaten
Collecting the sample from the upper respiratory tract
Collecting the sample in the morning immediately after waking up
#10
Which of the following is a proper technique for collecting a nasopharyngeal swab for respiratory virus testing?
Inserting the swab into the mouth
Using a dry swab for collection
Inserting the swab parallel to the palate
Using a cotton swab for collection
#11
When collecting a stool specimen for occult blood testing, what dietary restriction should the patient follow before sample collection?
Low-carbohydrate diet
High-fiber diet
Red meat consumption
Avoidance of non-steroidal anti-inflammatory drugs (NSAIDs)
#12
In which of the following situations would a tourniquet be contraindicated during blood specimen collection?
When performing a venipuncture on an adult
When the patient has fragile veins
When the patient has a history of syncope
When collecting a sample for serum electrolyte testing
#13
Which of the following is NOT a proper handling practice for collecting a stool specimen for ova and parasite examination?
Collecting the specimen in a clean, dry container
Sending the specimen to the laboratory immediately after collection
Avoiding contamination with urine or toilet tissue
Collecting the specimen from different areas of the stool
#14
Which of the following is NOT a recommended practice for handling a cerebrospinal fluid (CSF) specimen?
Centrifuging the specimen immediately after collection
Transporting the specimen to the laboratory promptly
Storing the specimen at room temperature
Protecting the specimen from light during transport
#15
In which of the following scenarios would a chain-of-custody form be required for specimen collection?
Collecting a routine urine sample for urinalysis
Collecting a blood sample for routine CBC testing
Collecting a urine sample for drug testing in the workplace
Collecting a sputum sample for AFB testing
#16
Which of the following is a reason to reject a urine sample for urinalysis?
Presence of foam on the surface
Specimen collected in a transparent container
Sample collected midstream
Presence of menstrual blood contamination
#17
During blood specimen collection, what is the recommended order of draw for multiple tubes?
Red, green, lavender, blue
Green, red, lavender, blue
Blue, lavender, red, green
Lavender, green, blue, red