#1
Which of the following is an appropriate step when collecting a blood specimen?
Using a dirty needle for venipuncture
Mixing the sample with other patients' samples
Labeling the sample container before specimen collection
Leaving the tourniquet on for an extended period after venipuncture
#2
What is the preferred site for collecting a blood specimen from an adult?
Radial artery
Femoral vein
Brachial vein
Antecubital vein
#3
Which of the following is an appropriate method for collecting a throat swab specimen?
Collecting the sample after the patient has gargled with mouthwash
Rubbing the swab against the teeth before collecting the specimen
Avoiding contact with the tonsils to prevent contamination
Using a sterile swab to vigorously rub the back of the throat
#4
What is the recommended method for collecting a sputum specimen?
Collecting the specimen in a non-sterile container
Collecting the specimen immediately after a meal
Instructing the patient to cough deeply to produce sputum
Discarding the first portion of sputum produced
#5
Which of the following is a proper way to collect a wound specimen?
Using a dry cotton swab to collect the specimen
Irrigating the wound before specimen collection
Avoiding the collection of purulent material
Collecting the specimen after the wound has been cleaned with alcohol
#6
Which of the following anticoagulants is commonly used for blood specimen collection?
Sodium citrate
Sodium chloride
Calcium sulfate
Potassium phosphate
#7
When collecting a urine specimen for culture and sensitivity testing, which technique is most appropriate?
Collecting the sample in a non-sterile container
Taking a sample from an indwelling catheter port
Using a clean catch midstream technique
Collecting the first voided specimen of the day
#8
Which of the following is NOT a suitable transport medium for transporting a bacterial culture specimen?
Amies transport medium
Stuart transport medium
Milk
Cary-Blair transport medium
#9
What is the primary purpose of collecting a cerebrospinal fluid (CSF) specimen?
To assess liver function
To diagnose central nervous system infections
To measure blood glucose levels
To assess kidney function
#10
Which of the following is NOT a suitable anticoagulant for plasma specimen collection?
Heparin
EDTA (Ethylenediaminetetraacetic acid)
Citrate
Sodium bicarbonate
#11
What is the purpose of refrigerating a stool specimen?
To preserve anaerobic bacteria
To prevent bacterial overgrowth
To speed up the growth of pathogens
To facilitate specimen collection
#12
In what condition should a urine specimen be stored if there will be a delay in processing?
Room temperature
At 4°C (39°F)
At 37°C (98.6°F)
At 50°C (122°F)
#13
Which of the following is NOT a common preservative used for urine specimens?
Boric acid
Sodium azide
Thimerosal
Acetic acid
#14
Which of the following is NOT a common additive used in blood collection tubes?
Sodium fluoride
Gel separator
Silica particles
Methylene blue
#15
What is the recommended method for collecting a cerebrospinal fluid (CSF) specimen for cell count and differential?
Collecting the specimen in a plain tube
Mixing the specimen with anticoagulant immediately after collection
Centrifuging the specimen before analysis
Using a sterile container with screw cap