NSG 3100 Exam 3 | Galen College of Nursing | 2026 Practice Questions, Answers & Detailed Rationales

NSG3100 x




Exam 3 | Galen College of Nursing | 2026 Practice
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Questions, Answers & Detailed Rationales
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Resource Features x




➢ NSG 3100 Exam 3 practice questions
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➢ 2026-focused review x




➢ Detailed answers x




➢ Comprehensive rationales x




➢ Nursing clinical scenarios
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➢ Prioritization questions x

, NSG 3100 Exam 3 2026 | Galen College of Nursing |
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x Practice Questions, Answers & Detailed Rationales x x x x x




1. Obtaining a capillary blood specimen to measure blood glucose, you
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x should:

• A) Use the fingertip only
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• B) Ensure there is good blood flow at the puncture site
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• C) Clean the site with alcohol after puncturing
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• D) Squeeze the site vigorously
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Answer: B) Ensure there is good blood flow at the puncture site
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Rationale: Adequate blood flow ensures a sufficient specimen for accurate
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glucose measurement. Warming the site and positioning it dependently
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promotes circulation. Squeezing can dilute the specimen with interstitial
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fluid, affecting accuracy.
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2. True or False: When testing for fecal occult blood, a green color
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x indicates a guaiac positive result.
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Answer: False x




Rationale: A guaiac positive result is indicated by a blue color, not green. The
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guaiac test detects the peroxidase activity of hemoglobin, which produces a
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blue color change in the presence of blood. Green is not a positive indicator
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and may suggest other issues or contamination.
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,3. A RN instructing a female patient on obtaining a clean catch urine
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x specimen should stress to: x x x




• A) Collect the first morning void
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• B) Clean the perineum with soap and water only
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• C) Void a small amount of urine before collecting the specimen
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• D) Collect the specimen in a sterile container without cleansing
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Answer: C) Void a small amount of urine before collecting the
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x specimen

Rationale: Voiding a small amount first clears the urethra of contaminants
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and ensures the midstream specimen is more representative of bladder
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urine. This technique minimizes contamination from the distal urethra and
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perineal area.
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4. The client has an indwelling catheter. The nurse should obtain a
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x sterile urine specimen by:
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• A) Opening the drainage bag and pouring urine into a sterile cup
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• B) Disconnecting the catheter from the drainage tubing
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• C) Using a syringe to withdraw urine from the catheter tubing
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port
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• D) Milking the catheter to obtain a sample
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, Answer: C) Using a syringe to withdraw urine from the catheter tubing
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x port

Rationale: The catheter tubing port has a designated sampling site that
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maintains the closed system. This method prevents contamination and
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reduces the risk of CAUTI. Disconnecting the catheter or opening the
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drainage bag violates the closed system and increases infection risk.
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5. An x-ray of the abdomen visualizing the kidneys, ureters and bladder
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x is known as:
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• A) IVP
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• B) KUB
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• C) CT scan
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• D) MRI x




Answer: B) KUB x x




Rationale: KUB stands for Kidneys, Ureters, and Bladder. This plain x-ray
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provides visualization of the urinary system structure and can identify stones,
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masses, or anatomical abnormalities. Unlike IVP, no contrast dye is used in a
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standard KUB.
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6. What is an echocardiogram?
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