CNA Catheter Care and Urinary Management 1 — Questions and Answers
Question 1: What is the PRIMARY purpose of an indwelling urinary (Foley) catheter?
- To treat urinary tract infections
- To drain urine continuously from the bladder (Correct answer)
- To measure blood pressure
- To administer medications
Correct answer: To drain urine continuously from the bladder
An indwelling catheter is a tube inserted into the bladder to continuously drain urine. It is used for urinary retention, monitoring output, or when residents cannot void independently.
Question 2: When caring for a resident with an indwelling catheter, the drainage bag should ALWAYS be kept:
- At the level of the resident's bladder
- Higher than the level of the bladder
- Below the level of the bladder (Correct answer)
- At any height as long as it is draining
Correct answer: Below the level of the bladder
The drainage bag must be kept below the level of the bladder at all times to use gravity for drainage and to prevent urine from backflowing into the bladder, which could cause infection.
Question 3: A CNA is transferring a catheterized resident from the bed to a wheelchair. What should be done with the catheter bag?
- Clamp the tubing and leave the bag on the bed rail
- Hang the bag on the IV pole above the resident's waist
- Secure the bag below the bladder level on the wheelchair frame, not on the floor (Correct answer)
- Disconnect the bag and reconnect after transfer
Correct answer: Secure the bag below the bladder level on the wheelchair frame, not on the floor
The catheter bag must remain below bladder level during all transfers to maintain gravity drainage and prevent backflow. It should never touch the floor (infection risk) or be disconnected.
Question 4: Catheter tubing should NEVER be kinked or compressed because:
- It can cause the catheter to be expelled
- It blocks urine flow, causing bladder distension and risk of infection (Correct answer)
- It increases the risk of bladder spasms only
- It makes ambulation more difficult
Correct answer: It blocks urine flow, causing bladder distension and risk of infection
Kinked or compressed tubing blocks urine drainage, causing urine to accumulate in the bladder (distension) and increasing the risk of urinary tract infection and catheter complications.
Question 5: How often should perineal care be performed for a resident with an indwelling catheter?
- Once a week
- Only when visible soiling occurs
- At least once daily and after each bowel movement (Correct answer)
- Once every 8-hour shift, regardless of soiling
Correct answer: At least once daily and after each bowel movement
Perineal hygiene should be performed at least once daily and after each bowel movement to remove bacteria near the catheter insertion site, the primary route for catheter-associated UTIs.
Question 6: When performing catheter perineal care, the CNA should clean:
- From the meatus outward along the catheter tubing (Correct answer)
- In a circular motion around the meatus
- From the perineum toward the catheter
- From distal to proximal along the tubing toward the body
Correct answer: From the meatus outward along the catheter tubing
Clean from the urethral meatus outward along the catheter (away from the body) using a single downward stroke per wipe. This removes bacteria from the insertion site and prevents introducing new organisms.
Question 7: Which of the following is a sign of a urinary tract infection (UTI) in a catheterized resident?
- Clear, pale yellow urine with no odor
- Cloudy, dark, or foul-smelling urine and fever (Correct answer)
- Increased urine output with normal color
- Transparent urine with no sediment
Correct answer: Cloudy, dark, or foul-smelling urine and fever
Signs of catheter-associated UTI include cloudy or dark urine, strong or foul odor, decreased output, sediment, fever, chills, and complaints of burning or pelvic discomfort.
Question 8: The CNA notes that the catheter bag has not had any drainage for two hours. The BEST first action is to:
- Irrigate the catheter immediately
- Check the tubing for kinks, clamps, or compression, then report to the nurse (Correct answer)
- Document the finding and wait until shift change
- Ask the resident if they feel the urge to urinate
Correct answer: Check the tubing for kinks, clamps, or compression, then report to the nurse
No drainage for 2 hours may indicate a kinked tube, full bag, or catheter obstruction. Check for mechanical causes first; if resolved drainage still doesn't resume, notify the nurse.
Question 9: A catheterized resident complains of pain and pressure in the lower abdomen. The CNA should:
- Reassure the resident it is normal discomfort
- Check catheter tubing and drainage, then report to the nurse promptly (Correct answer)
- Administer a pain reliever from the medication cart
- Apply a heating pad to the abdomen
Correct answer: Check catheter tubing and drainage, then report to the nurse promptly
Lower abdominal pain and pressure in a catheterized resident may indicate bladder spasm, obstruction, or infection. Check for drainage issues and report symptoms immediately to the nurse.
Question 10: When should the CNA wear gloves during catheter care?
- Only if the resident has a known infection
- During all catheter care and when handling the drainage bag or tubing (Correct answer)
- Only when emptying the drainage bag
- Gloves are optional if hands are washed beforehand
Correct answer: During all catheter care and when handling the drainage bag or tubing
Gloves must be worn during all catheter care, including perineal hygiene, handling the catheter tubing, and emptying the drainage bag, because urine is a body fluid and a potential infection source.
Question 11: How should the CNA empty a urinary drainage bag?
- Disconnect the tubing from the catheter to drain
- Use the drain port at the bottom of the bag, collect in a graduate cylinder, and measure output (Correct answer)
- Squeeze the bag to push urine through the tubing
- Turn the bag upside down to use gravity
Correct answer: Use the drain port at the bottom of the bag, collect in a graduate cylinder, and measure output
Empty the bag through the drain port into a clean graduate cylinder, measure the output, document it, and close the port securely. Never disconnect the system at the catheter junction.
Question 12: How full should the drainage bag be allowed to get before emptying?
- Wait until completely full before emptying
- Empty when it reaches about two-thirds to three-quarters full (Correct answer)
- Empty exactly every 2 hours regardless of fill level
- Empty only at shift change
Correct answer: Empty when it reaches about two-thirds to three-quarters full
Catheter drainage bags should be emptied when about 2/3 to 3/4 full to prevent overfilling, which can create back-pressure, raise the bag above bladder level, or cause urine backflow.
Question 13: The CNA should NEVER allow the drain spigot of the catheter bag to touch:
- The collection container
- Anything other than the inside of the sterile collection container (Correct answer)
- The measuring graduate
- The side of the toilet bowl
Correct answer: Anything other than the inside of the sterile collection container
The drain spigot is a critical infection control point. If it touches a non-sterile surface (floor, graduate outside rim, toilet), it must be cleaned per policy before closing to prevent introducing bacteria into the system.
Question 14: Securing the catheter tubing to the resident's inner thigh is done to:
- Mark the catheter as belonging to that resident
- Prevent traction on the urethra and reduce discomfort (Correct answer)
- Keep the drainage bag above bladder level
- Prevent the resident from removing the catheter
Correct answer: Prevent traction on the urethra and reduce discomfort
Securing the catheter to the thigh with a leg strap or tape prevents the catheter from pulling on the urethra, reducing irritation, discomfort, and the risk of catheter dislodgement.
Question 15: A condom (external) catheter is used for:
- Female residents with urinary incontinence
- Male residents with urinary incontinence who can void on their own (Correct answer)
- All residents regardless of gender
- Residents with urinary retention who cannot void
Correct answer: Male residents with urinary incontinence who can void on their own
A condom catheter is a non-invasive device that fits over the penis and collects urine as the resident voids normally. It is an option for male residents with incontinence who retain the ability to urinate.
Question 16: Which of the following should be reported when monitoring a catheterized resident?
- Clear yellow urine with a volume of 50 mL/hour
- Cloudy brown urine with sediment and strong odor (Correct answer)
- Urine that smells slightly of what the resident ate
- Pale urine with no visible sediment
Correct answer: Cloudy brown urine with sediment and strong odor
Cloudy, brown, or foul-smelling urine with sediment is abnormal and may indicate infection, dehydration, or other pathology. This must be reported to the nurse promptly.
Question 17: Normal urine output for an adult is approximately:
- 100–300 mL per day
- 800–2,000 mL per day (Correct answer)
- 3,000–4,000 mL per day
- 5,000–6,000 mL per day
Correct answer: 800–2,000 mL per day
Normal adult urine output is approximately 800–2,000 mL per day (about 30–50 mL/hour). Output significantly below 30 mL/hour may indicate dehydration or kidney problems.
Question 18: Oliguria is defined as urine output:
- Greater than 2,500 mL per day
- Between 800–2,000 mL per day
- Less than 400 mL per day (Correct answer)
- Exactly 1,000 mL per day
Correct answer: Less than 400 mL per day
Oliguria means abnormally low urine output, generally less than 400 mL per day in adults. It is a sign of possible kidney dysfunction, severe dehydration, or shock and must be reported.
Question 19: When documenting urine output, the CNA should record:
- An estimate based on the bag color
- The exact measured amount in milliliters, time of measurement, and characteristics (Correct answer)
- Only abnormalities, not routine output
- The amount from the last two shifts combined
Correct answer: The exact measured amount in milliliters, time of measurement, and characteristics
Accurate fluid balance records require exact measurements in mL, timing, and a description of urine characteristics (color, clarity) to track trends and detect problems early.
Question 20: What is the MOST important step for preventing catheter-associated urinary tract infections (CAUTI)?
- Irrigating the catheter daily with saline
- Maintaining a closed drainage system and practicing proper hand hygiene (Correct answer)
- Changing the catheter every 24 hours
- Adding antiseptic solution to the drainage bag
Correct answer: Maintaining a closed drainage system and practicing proper hand hygiene
The closed drainage system is the most critical infection prevention measure. The system (catheter-to-tubing-to-bag junction) should never be broken, and hand hygiene must be performed before and after all catheter care.
Question 21: Which action would BREAK the sterile closed catheter system and increase infection risk?
- Emptying the bag through the drain port
- Securing the tubing to the thigh
- Disconnecting the catheter tubing from the catheter to empty the bag (Correct answer)
- Keeping the bag below the bladder
Correct answer: Disconnecting the catheter tubing from the catheter to empty the bag
Disconnecting the catheter from the drainage tubing breaks the closed system, introducing bacteria and dramatically increasing the risk of urinary tract infection.
Question 22: A resident's catheter appears to have come out partially. The CNA should:
- Gently push the catheter back in
- Do not reinsert; report to the nurse immediately (Correct answer)
- Tape the catheter to the resident's leg and monitor
- Clamp the tubing and continue care
Correct answer: Do not reinsert; report to the nurse immediately
CNA scope of practice does not include catheter insertion or reinsertion. If the catheter appears dislodged, the CNA must notify the nurse immediately without attempting to reinsert it.
Question 23: A urinary catheter balloon is used to:
- Block urine flow during transfers
- Hold the catheter securely in the bladder so it cannot be pulled out (Correct answer)
- Measure bladder volume
- Inflate the urethra for comfort
Correct answer: Hold the catheter securely in the bladder so it cannot be pulled out
The inflatable balloon at the tip of a Foley catheter is filled with sterile water after placement to anchor the catheter inside the bladder, preventing accidental removal.
Question 24: During ambulation with a catheterized resident, the drainage bag should be:
- Hung on an IV pole at shoulder height
- Clipped to the walker above waist level
- Carried in a drainage bag holder below bladder level (Correct answer)
- Left behind in the room until return
Correct answer: Carried in a drainage bag holder below bladder level
During ambulation, the drainage bag should be held or clipped below the level of the bladder at all times in a designated bag holder to prevent urine backflow and tripping hazards.
Question 25: Which of the following BEST prevents catheter-related trauma?
- Inserting the catheter quickly
- Securing the catheter to the thigh and avoiding tension on the tubing (Correct answer)
- Using the smallest catheter size available
- Irrigating daily to remove blockages
Correct answer: Securing the catheter to the thigh and avoiding tension on the tubing
Proper securement prevents the catheter from pulling on the urethra during movement. Tension on the catheter can cause urethral trauma, stricture, and discomfort.
Question 26: What color should normal urine be?
- Dark brown or amber
- Bright red or pink
- Pale yellow to amber (Correct answer)
- Milky white
Correct answer: Pale yellow to amber
Normal urine ranges from pale yellow to amber depending on hydration level. Very dark urine suggests dehydration; red or pink urine may indicate blood and must be reported.
Question 27: Hematuria refers to:
- No urine production
- Blood in the urine (Correct answer)
- Excess protein in the urine
- Pus in the urine
Correct answer: Blood in the urine
Hematuria is the presence of blood in the urine, causing pink, red, or cola-colored urine. It must be reported immediately as it can indicate infection, kidney problems, or catheter trauma.
Question 28: When a resident has a suprapubic catheter, the CNA should be aware that it:
- Drains urine through the urethra
- Is inserted through the abdominal wall into the bladder (Correct answer)
- Is changed daily by the CNA
- Does not require any special care
Correct answer: Is inserted through the abdominal wall into the bladder
A suprapubic catheter is surgically inserted through the abdomen directly into the bladder. The insertion site requires skin care and observation for signs of infection, just like any surgical site.
Question 29: The MOST common complication associated with indwelling urinary catheters is:
- Kidney stones
- Urinary tract infection (CAUTI) (Correct answer)
- Bladder rupture
- Urethral stricture
Correct answer: Urinary tract infection (CAUTI)
Catheter-associated urinary tract infection (CAUTI) is the most frequent healthcare-associated infection and is strongly linked to indwelling catheters. Prevention is a top priority in catheter care.
Question 30: If a catheterized resident reports that they still feel the urge to urinate, the CNA should:
- Tell the resident it is impossible to feel that urge with a catheter
- Ignore the complaint as it is routine
- Check tubing for obstruction, report the complaint to the nurse, and document it (Correct answer)
- Ask the resident to try to void around the catheter
Correct answer: Check tubing for obstruction, report the complaint to the nurse, and document it
Persistent urge sensation in a catheterized resident may indicate bladder spasm, obstruction, or catheter displacement. It should never be dismissed — report to the nurse.
Question 31: Intake and output (I&O) records for a catheterized resident help the care team to:
- Monitor dietary preferences only
- Assess fluid balance and kidney function (Correct answer)
- Determine medication timing
- Track activity levels
Correct answer: Assess fluid balance and kidney function
Accurate I&O records allow nurses and physicians to evaluate fluid balance, kidney function, hydration status, and the effectiveness of diuretics or fluid restrictions.
Question 32: Which of the following indicates adequate urine output in a catheterized adult?
- Less than 10 mL per hour
- 10–29 mL per hour
- 30–50 mL per hour (Correct answer)
- Over 200 mL per hour
Correct answer: 30–50 mL per hour
Adequate urine output for an adult is at least 30 mL per hour (approximately 720 mL per day). Output below 30 mL/hour may signal dehydration, kidney dysfunction, or circulatory issues.
Question 33: When a resident with a catheter is placed in a lateral (side-lying) position, the CNA should ensure:
- The drainage bag is placed on the mattress beside the resident
- Tubing is not kinked or compressed between the mattress and bedrail (Correct answer)
- The catheter balloon is deflated for comfort
- The drainage bag is temporarily placed above bladder level
Correct answer: Tubing is not kinked or compressed between the mattress and bedrail
Side-lying positions can compress catheter tubing between the mattress and bed rail. The CNA must check and reposition tubing to prevent kinking that would obstruct drainage.
Question 34: What hand hygiene steps must be performed before and after catheter care?
- Quick hand rinse with water only
- Thorough handwashing with soap and water or alcohol-based hand rub, then gloves on before contact (Correct answer)
- Wipe hands with a dry towel before donning gloves
- No special hand hygiene is needed if gloves are worn
Correct answer: Thorough handwashing with soap and water or alcohol-based hand rub, then gloves on before contact
Standard hand hygiene (soap and water or alcohol-based rub) must be performed before donning gloves and after removing them following catheter care. Gloves do not replace hand hygiene.
What is the PRIMARY purpose of an indwelling urinary (Foley) catheter?