NSG 3100 Exam 3 - Fundamental Concepts and
Skills for Nursing
Practice Questions and Answers (2026/2027
Update)
Section 1: Diagnostic Procedures and Specimen Collection
1. Obtaining a capillary blood specimen to measure blood glucose, you
should:
A. Use the first drop of blood for testing
B. Ensure there is good blood flow at the puncture site
C. Squeeze the finger firmly to obtain blood
D. Clean the site with alcohol and test immediately
Exact answer::B
Rationale: Ensuring good blood flow at the puncture site is essential for
obtaining an accurate capillary blood specimen. The finger should be
warm and held in a dependent position (below the heart). The first drop
should be wiped away, and alcohol must be allowed to dry completely
before puncture to prevent inaccurate readings .
1
,2. When testing for fecal occult blood, a green color indicates a guaiac
positive result.
A. True
B. False
Exact answer::B (False)
Rationale: A blue color indicates a guaiac positive result, not green. The
test detects the presence of blood in stool through a peroxidase
reaction that produces a blue color change. Green coloration is not a
valid indicator for guaiac testing .
3. An RN instructing a female patient on obtaining a clean catch urine
specimen should stress to:
A. Collect the first urine of the morning
B. Void a small amount of urine before collecting the specimen
C. Clean the perineum after collecting the specimen
D. Collect urine throughout the day
Exact answer::B
2
, Rationale: For a clean catch (midstream) urine specimen, the patient
should void a small amount of urine first, then collect the midstream
portion into the sterile container. This technique helps flush
contaminants from the urethra before obtaining the specimen .
4. The client has an indwelling catheter. The nurse should obtain a
sterile urine specimen by:
A. Emptying the drainage bag into a sterile container
B. Disconnecting the catheter from the drainage tube
C. Using a syringe to withdraw urine from the catheter tubing port
D. Placing the drainage bag below the bladder level
Exact answer::C
Rationale: Sterile urine specimens from an indwelling catheter should
be obtained using a syringe to aspirate urine from the catheter's
sampling port (needleless access site). This method maintains the
closed system and prevents introducing pathogens .
5. An x-ray of the abdomen visualizing the kidneys, ureters, and
bladder is known as:
3
Skills for Nursing
Practice Questions and Answers (2026/2027
Update)
Section 1: Diagnostic Procedures and Specimen Collection
1. Obtaining a capillary blood specimen to measure blood glucose, you
should:
A. Use the first drop of blood for testing
B. Ensure there is good blood flow at the puncture site
C. Squeeze the finger firmly to obtain blood
D. Clean the site with alcohol and test immediately
Exact answer::B
Rationale: Ensuring good blood flow at the puncture site is essential for
obtaining an accurate capillary blood specimen. The finger should be
warm and held in a dependent position (below the heart). The first drop
should be wiped away, and alcohol must be allowed to dry completely
before puncture to prevent inaccurate readings .
1
,2. When testing for fecal occult blood, a green color indicates a guaiac
positive result.
A. True
B. False
Exact answer::B (False)
Rationale: A blue color indicates a guaiac positive result, not green. The
test detects the presence of blood in stool through a peroxidase
reaction that produces a blue color change. Green coloration is not a
valid indicator for guaiac testing .
3. An RN instructing a female patient on obtaining a clean catch urine
specimen should stress to:
A. Collect the first urine of the morning
B. Void a small amount of urine before collecting the specimen
C. Clean the perineum after collecting the specimen
D. Collect urine throughout the day
Exact answer::B
2
, Rationale: For a clean catch (midstream) urine specimen, the patient
should void a small amount of urine first, then collect the midstream
portion into the sterile container. This technique helps flush
contaminants from the urethra before obtaining the specimen .
4. The client has an indwelling catheter. The nurse should obtain a
sterile urine specimen by:
A. Emptying the drainage bag into a sterile container
B. Disconnecting the catheter from the drainage tube
C. Using a syringe to withdraw urine from the catheter tubing port
D. Placing the drainage bag below the bladder level
Exact answer::C
Rationale: Sterile urine specimens from an indwelling catheter should
be obtained using a syringe to aspirate urine from the catheter's
sampling port (needleless access site). This method maintains the
closed system and prevents introducing pathogens .
5. An x-ray of the abdomen visualizing the kidneys, ureters, and
bladder is known as:
3
