NSG 3100
Exam 3 | Galen College of Nursing | 2026 Practice
Questions, Answers & Detailed Rationales
Resource Features
➢ NSG 3100 Exam 3 practice questions
➢ 2026-focused review
➢ Detailed answers
➢ Comprehensive rationales
➢ Nursing clinical scenarios
➢ Prioritization questions
, NSG 3100 Exam 3 2026 | Galen College of Nursing |
Practice Questions, Answers & Detailed Rationales
1. Obtaining a capillary blood specimen to measure blood glucose,
you should:
• A) Use the fingertip only
• B) Ensure there is good blood flow at the puncture site
• C) Clean the site with alcohol after puncturing
• D) Squeeze the site vigorously
Answer: B) Ensure there is good blood flow at the puncture site
Rationale: Adequate blood flow ensures a sufficient specimen for accurate
glucose measurement. Warming the site and positioning it dependently
promotes circulation. Squeezing can dilute the specimen with interstitial
fluid, affecting accuracy.
2. True or False: When testing for fecal occult blood, a green color
indicates a guaiac positive result.
Answer: False
Rationale: A guaiac positive result is indicated by a blue color, not green.
The guaiac test detects the peroxidase activity of hemoglobin, which
produces a blue color change in the presence of blood. Green is not a
positive indicator and may suggest other issues or contamination.
,3. A RN instructing a female patient on obtaining a clean catch urine
specimen should stress to:
• A) Collect the first morning void
• B) Clean the perineum with soap and water only
• C) Void a small amount of urine before collecting the specimen
• D) Collect the specimen in a sterile container without cleansing
Answer: C) Void a small amount of urine before collecting the
specimen
Rationale: Voiding a small amount first clears the urethra of contaminants
and ensures the midstream specimen is more representative of bladder
urine. This technique minimizes contamination from the distal urethra and
perineal area.
4. The client has an indwelling catheter. The nurse should obtain a
sterile urine specimen by:
• A) Opening the drainage bag and pouring urine into a sterile cup
• B) Disconnecting the catheter from the drainage tubing
• C) Using a syringe to withdraw urine from the catheter tubing
port
• D) Milking the catheter to obtain a sample
, Answer: C) Using a syringe to withdraw urine from the catheter tubing
port
Rationale: The catheter tubing port has a designated sampling site that
maintains the closed system. This method prevents contamination and
reduces the risk of CAUTI. Disconnecting the catheter or opening the
drainage bag violates the closed system and increases infection risk.
5. An x-ray of the abdomen visualizing the kidneys, ureters and
bladder is known as:
• A) IVP
• B) KUB
• C) CT scan
• D) MRI
Answer: B) KUB
Rationale: KUB stands for Kidneys, Ureters, and Bladder. This plain x-ray
provides visualization of the urinary system structure and can identify
stones, masses, or anatomical abnormalities. Unlike IVP, no contrast dye is
used in a standard KUB.
6. What is an echocardiogram?
Exam 3 | Galen College of Nursing | 2026 Practice
Questions, Answers & Detailed Rationales
Resource Features
➢ NSG 3100 Exam 3 practice questions
➢ 2026-focused review
➢ Detailed answers
➢ Comprehensive rationales
➢ Nursing clinical scenarios
➢ Prioritization questions
, NSG 3100 Exam 3 2026 | Galen College of Nursing |
Practice Questions, Answers & Detailed Rationales
1. Obtaining a capillary blood specimen to measure blood glucose,
you should:
• A) Use the fingertip only
• B) Ensure there is good blood flow at the puncture site
• C) Clean the site with alcohol after puncturing
• D) Squeeze the site vigorously
Answer: B) Ensure there is good blood flow at the puncture site
Rationale: Adequate blood flow ensures a sufficient specimen for accurate
glucose measurement. Warming the site and positioning it dependently
promotes circulation. Squeezing can dilute the specimen with interstitial
fluid, affecting accuracy.
2. True or False: When testing for fecal occult blood, a green color
indicates a guaiac positive result.
Answer: False
Rationale: A guaiac positive result is indicated by a blue color, not green.
The guaiac test detects the peroxidase activity of hemoglobin, which
produces a blue color change in the presence of blood. Green is not a
positive indicator and may suggest other issues or contamination.
,3. A RN instructing a female patient on obtaining a clean catch urine
specimen should stress to:
• A) Collect the first morning void
• B) Clean the perineum with soap and water only
• C) Void a small amount of urine before collecting the specimen
• D) Collect the specimen in a sterile container without cleansing
Answer: C) Void a small amount of urine before collecting the
specimen
Rationale: Voiding a small amount first clears the urethra of contaminants
and ensures the midstream specimen is more representative of bladder
urine. This technique minimizes contamination from the distal urethra and
perineal area.
4. The client has an indwelling catheter. The nurse should obtain a
sterile urine specimen by:
• A) Opening the drainage bag and pouring urine into a sterile cup
• B) Disconnecting the catheter from the drainage tubing
• C) Using a syringe to withdraw urine from the catheter tubing
port
• D) Milking the catheter to obtain a sample
, Answer: C) Using a syringe to withdraw urine from the catheter tubing
port
Rationale: The catheter tubing port has a designated sampling site that
maintains the closed system. This method prevents contamination and
reduces the risk of CAUTI. Disconnecting the catheter or opening the
drainage bag violates the closed system and increases infection risk.
5. An x-ray of the abdomen visualizing the kidneys, ureters and
bladder is known as:
• A) IVP
• B) KUB
• C) CT scan
• D) MRI
Answer: B) KUB
Rationale: KUB stands for Kidneys, Ureters, and Bladder. This plain x-ray
provides visualization of the urinary system structure and can identify
stones, masses, or anatomical abnormalities. Unlike IVP, no contrast dye is
used in a standard KUB.
6. What is an echocardiogram?
