Page |1
NU 136 EXAM 2 ENEMAS ACTUAL EXAM [ QUESTION
1- 200] AND ANSWERS UPDATED 2026/2027| 100%
VERIFIED|DETAILED RATIONALES –PASS
GUARANTEED A+ GRADED |INSTANT DOWNLOAD
Introduction:
Welcome to the definitive practice resource for the NU 136 Exam 2 focusing on enemas and
bowel elimination procedures. This comprehensive study guide is meticulously designed to
mirror the academic rigor and clinical competencies expected in modern nursing education. This
practice set covers essential fundamental concepts, including the physiological principles of
bowel elimination, types of enemas (cleansing, retention, medicated, and return-flow), precise
procedural steps, patient positioning, safety precautions, and the identification of potential
complications such as fluid and electrolyte imbalances or vagal nerve stimulation. Mastery of
these objectives is crucial for nursing students, as safe administration of enemas directly impacts
patient comfort, diagnostic preparation, and therapeutic outcomes in clinical practice. By
engaging with these original, scenario-based questions, candidates will strengthen their critical
thinking, clinical judgment, and procedural confidence required to excel on the NU 136
examination and deliver safe, high-quality patient care.
Core Domains Covered:
1. Fundamentals of Bowel Elimination and Anatomy: Understanding normal gastrointestinal
motility, physiology of defecation, and indications for medical intervention via the lower GI
tract.
2. Classification and Purpose of Enemas: Differentiating between cleansing, tap water, normal
saline, soapsuds, hypertonic, oil retention, and carminative enemas.
3. Procedural Techniques and Patient Preparation: Mastering correct equipment setup, solution
temperature regulation, volume standards, and anatomical insertion angles.
4. Patient Positioning and Safety: Implementing correct anatomical positioning such as the left
Sims position and mitigating risks of mucosal trauma.
5. Complications and Nursing Interventions: Recognizing and managing adverse responses
including severe cramping, rectal bleeding, perforation, and vasovagal episodes.
6. Special Populations and Clinical Scenarios: Administering enemas safely to pediatric,
geriatric, or pre-operative patients while respecting contraindications.
Question 1: A nursing student is preparing to administer a cleansing enema to an adult patient
scheduled for a diagnostic sigmoidoscopy. Which patient position should the nurse utilize during
the insertion of the rectal tube?
A) Dorsal recumbent position
B) C) Left lateral Sims position
D) High Fowler position
Rationale: The left lateral Sims position is the correct and standard position for enema
administration because the sigmoid colon curves downward and medially toward the rectum,
allowing the enema solution to flow easily by gravity into the bowel. The dorsal recumbent
position places incorrect pressure and angle on the anal canal. The High Fowler position makes
,Page |2
insertion awkward and uncomfortable, increasing the risk of mucosal injury. Option C correctly
aligns with anatomical guidelines for bowel procedures.
Question 2: A nurse is preparing a soapsuds enema for a patient with severe constipation. What
is the correct ratio of castile soap to water when mixing a standard adult soapsuds enema?
A) One milliliter of soap per five hundred milliliters of water
B) C) Five milliliters of soap per one thousand milliliters of solution
D) Ten milliliters of soap per two hundred fifty milliliters of solution
Rationale: The standard clinical preparation for a soapsuds enema requires five milliliters of
castile soap added to one thousand milliliters (one liter) of warm water or normal saline. Using
too much soap can cause severe mucosal irritation and damage to the intestinal wall. Option C
provides the exact, safe therapeutic ratio recommended in clinical nursing textbooks.
Question 3: While administering a tap water enema, a patient suddenly complains of severe
abdominal cramping and abdominal pain. What is the immediate nursing action?
A) Stop the infusion permanently and document the refusal
B) C) Clamp the tubing temporarily and instruct the patient to take slow, deep breaths
D) Raise the height of the enema container to speed up the procedure
Rationale: Severe cramping during an enema is typically caused by the solution instilling too
rapidly. Clamping the tubing temporarily or lowering the container slows the infusion and
relieves cramping without stopping the treatment entirely. Once discomfort subsides, the nurse
can resume at a slower rate. Raising the height would increase pressure and worsen pain,
making option C the correct clinical choice.
Question 4: A physician orders a hypertonic enema for an adult patient. Which commercial
preparation is commonly utilized for this type of enema?
A) Tap water solution
B) C) Fleet enema (sodium biphosphate and sodium phosphate)
D) Castile soap and warm water mix
Rationale: Hypertonic solutions pull fluid out of the interstitial spaces and into the colon by
osmosis, stimulating peristalsis. The Fleet enema is a classic example of a pre-packaged
hypertonic enema. Tap water is hypotonic, soapsuds is an irritant, and castile soap is mixed with
water, not hypertonic by nature. Therefore, option C is correct.
Question 5: A nurse is preparing a cleansing enema for an adult patient. What is the
recommended temperature range for the enema solution to prevent thermal injury or chilling?
A) Ninety-five to ninety-eight degrees Fahrenheit
B) C) One hundred to one hundred five degrees Fahrenheit
D) One hundred ten to one hundred fifteen degrees Fahrenheit
Rationale: The enema solution must be warm, specifically between one hundred and one
hundred five degrees Fahrenheit (thirty-seven point eight to forty point six degrees Celsius), to
ensure patient comfort and prevent internal tissue damage or chilling. Solution that is too cold
causes severe cramping, while solution that is too hot can burn the delicate rectal mucosa.
Question 6: At what distance should the nurse insert the lubricated rectal tube into the rectum of
an adult patient during an enema procedure?
,Page |3
A) One to two inches
B) C) Three to four inches
D) Five to six inches
Rationale: For an adult, the lubricated rectal tube should be inserted three to four inches (seven
point five to ten centimeters) pointing in the direction of the umbilicus. Inserting it less than
three inches risks ballooning the tube in the anal sphincter rather than the rectum, while
inserting it further increases the risk of damaging the intestinal wall.
Question 7: A patient is prescribed an oil-retention enema. What is the primary therapeutic
mechanism of action for this type of enema?
A) To irritate the bowel wall and stimulate immediate peristalsis
B) C) To lubricate the rectum and colon while softening hardened stool
D) To absorb excess systemic toxins from the lower gastrointestinal tract
Rationale: Oil-retention enemas introduce mineral oil or olive oil into the colon. The oil is
retained for a period, typically one to three hours, to coat and soften hard fecal masses, making
them easier to pass naturally. They do not work by immediate irritation or toxin absorption,
making option C correct.
Question 8: A nurse is caring for a patient who exhibits signs of a vasovagal response during an
enema procedure, including pallor, diaphoresis, and a heart rate of fifty beats per minute. What is
the priority nursing intervention?
A) Continue the enema quickly to finish the procedure
B) C) Immediately stop the procedure, remove the tube, and assess vital signs
D) Administer oral fluids immediately
Rationale: Stimulation of the vagal nerve during rectal manipulation or rapid distension can
cause severe bradycardia, hypotension, and fainting. The immediate priority is to halt the
stimulus by stopping the procedure and removing the tube, followed by assessing the patient and
notifying the primary provider if symptoms persist. Option C is the correct safety response.
Question 9: Which patient condition represents an absolute contraindication for the
administration of any type of enema?
A) Mild chronic constipation
B) C) Recent rectal or bowel surgery with fresh suture lines
D) Mild hemorrhoids without bleeding
Rationale: Recent rectal, colon, or pelvic surgeries create fragile suture lines that can easily
rupture under the pressure of fluid instillation or mechanical tube insertion, leading to severe
hemorrhage or dehiscence. Mild constipation, hemorrhoids, and diagnostic preparations are
standard indications where enemas are frequently utilized with caution.
Question 10: A nurse is administering a large-volume cleansing enema to an adult. How high
above the patient's hips should the nurse hang the enema bag?
A) Six to twelve inches
B) C) Twelve to eighteen inches
D) Twenty-four to thirty inches
Rationale: The height of the enema container dictates the speed and pressure at which the fluid
enters the colon. For an adult, hanging the container twelve to eighteen inches (thirty to forty-
, Page |4
five centimeters) above the anus provides safe and controlled gravitational flow. Hanging it too
high increases pressure and causes cramping.
Question 11: A nurse needs to expel flatus from a post-operative patient experiencing abdominal
distension. Which specific type of enema should the nurse anticipate administering?
A) Cleansing enema
B) C) Carminative enema
D) Oil-retention enema
Rationale: A carminative enema, such as a milk and molasses enema, is specifically formulated
to release flatus from the colon and relieve gaseous distension. Cleansing enemas remove stool,
oil-retention enemas soften stool, and medicated enemas introduce systemic or local drugs.
Option C is correct.
Question 12: A patient asks why a normal saline enema is considered safer than a tap water
enema for pediatric patients or individuals with heart failure. What is the nurse's best response?
A) Normal saline is cheaper to purchase in commercial settings
B) C) Normal saline is isotonic and prevents dangerous fluid and electrolyte shifts
D) Normal saline stimulates faster bowel evacuation than tap water
Rationale: Tap water is hypotonic. When introduced into the colon, it can be absorbed across
the intestinal membrane into the bloodstream, leading to water toxicity, circulatory overload,
and electrolyte imbalances. Normal saline is isotonic (same osmotic pressure as bodily fluids),
making it safe against fluid shifts. Option C is correct.
Question 13: Before administering an enema, the nurse primes the tubing by allowing a small
amount of solution to flow through. What is the primary purpose of this step?
A) To warm the external tubing material
B) C) To expel air from the tubing so it is not introduced into the patient's colon
D) To test the chemical pH of the liquid
Rationale: Priming the tubing removes trapped air inside the plastic line. Introducing air into
the rectum and colon can cause significant cramping and painful abdominal distension for the
patient. Option C accurately identifies the mechanical safety rationale.
Question 14: A nurse is preparing a return-flow enema, also known as a Harris flush. What is the
primary clinical objective of this procedure?
A) To cleanse the entire large intestine prior to surgery
B) C) To help the patient expel flatus when other measures fail
D) To deliver systemic medication through the rectal mucosa
Rationale: A return-flow enema is designed to manage and relieve trapped gas. The procedure
involves alternating the instillation and lowering of a small volume of fluid (one hundred to two
hundred milliliters) into and out of the rectum to stimulate peristalsis and release flatus. Option
C is correct.
Question 15: During the insertion of a rectal tube for an enema, the nurse feels resistance as the
tube enters the anal canal. What should the nurse do next?
A) Force the tube gently past the resistance using firm pressure
NU 136 EXAM 2 ENEMAS ACTUAL EXAM [ QUESTION
1- 200] AND ANSWERS UPDATED 2026/2027| 100%
VERIFIED|DETAILED RATIONALES –PASS
GUARANTEED A+ GRADED |INSTANT DOWNLOAD
Introduction:
Welcome to the definitive practice resource for the NU 136 Exam 2 focusing on enemas and
bowel elimination procedures. This comprehensive study guide is meticulously designed to
mirror the academic rigor and clinical competencies expected in modern nursing education. This
practice set covers essential fundamental concepts, including the physiological principles of
bowel elimination, types of enemas (cleansing, retention, medicated, and return-flow), precise
procedural steps, patient positioning, safety precautions, and the identification of potential
complications such as fluid and electrolyte imbalances or vagal nerve stimulation. Mastery of
these objectives is crucial for nursing students, as safe administration of enemas directly impacts
patient comfort, diagnostic preparation, and therapeutic outcomes in clinical practice. By
engaging with these original, scenario-based questions, candidates will strengthen their critical
thinking, clinical judgment, and procedural confidence required to excel on the NU 136
examination and deliver safe, high-quality patient care.
Core Domains Covered:
1. Fundamentals of Bowel Elimination and Anatomy: Understanding normal gastrointestinal
motility, physiology of defecation, and indications for medical intervention via the lower GI
tract.
2. Classification and Purpose of Enemas: Differentiating between cleansing, tap water, normal
saline, soapsuds, hypertonic, oil retention, and carminative enemas.
3. Procedural Techniques and Patient Preparation: Mastering correct equipment setup, solution
temperature regulation, volume standards, and anatomical insertion angles.
4. Patient Positioning and Safety: Implementing correct anatomical positioning such as the left
Sims position and mitigating risks of mucosal trauma.
5. Complications and Nursing Interventions: Recognizing and managing adverse responses
including severe cramping, rectal bleeding, perforation, and vasovagal episodes.
6. Special Populations and Clinical Scenarios: Administering enemas safely to pediatric,
geriatric, or pre-operative patients while respecting contraindications.
Question 1: A nursing student is preparing to administer a cleansing enema to an adult patient
scheduled for a diagnostic sigmoidoscopy. Which patient position should the nurse utilize during
the insertion of the rectal tube?
A) Dorsal recumbent position
B) C) Left lateral Sims position
D) High Fowler position
Rationale: The left lateral Sims position is the correct and standard position for enema
administration because the sigmoid colon curves downward and medially toward the rectum,
allowing the enema solution to flow easily by gravity into the bowel. The dorsal recumbent
position places incorrect pressure and angle on the anal canal. The High Fowler position makes
,Page |2
insertion awkward and uncomfortable, increasing the risk of mucosal injury. Option C correctly
aligns with anatomical guidelines for bowel procedures.
Question 2: A nurse is preparing a soapsuds enema for a patient with severe constipation. What
is the correct ratio of castile soap to water when mixing a standard adult soapsuds enema?
A) One milliliter of soap per five hundred milliliters of water
B) C) Five milliliters of soap per one thousand milliliters of solution
D) Ten milliliters of soap per two hundred fifty milliliters of solution
Rationale: The standard clinical preparation for a soapsuds enema requires five milliliters of
castile soap added to one thousand milliliters (one liter) of warm water or normal saline. Using
too much soap can cause severe mucosal irritation and damage to the intestinal wall. Option C
provides the exact, safe therapeutic ratio recommended in clinical nursing textbooks.
Question 3: While administering a tap water enema, a patient suddenly complains of severe
abdominal cramping and abdominal pain. What is the immediate nursing action?
A) Stop the infusion permanently and document the refusal
B) C) Clamp the tubing temporarily and instruct the patient to take slow, deep breaths
D) Raise the height of the enema container to speed up the procedure
Rationale: Severe cramping during an enema is typically caused by the solution instilling too
rapidly. Clamping the tubing temporarily or lowering the container slows the infusion and
relieves cramping without stopping the treatment entirely. Once discomfort subsides, the nurse
can resume at a slower rate. Raising the height would increase pressure and worsen pain,
making option C the correct clinical choice.
Question 4: A physician orders a hypertonic enema for an adult patient. Which commercial
preparation is commonly utilized for this type of enema?
A) Tap water solution
B) C) Fleet enema (sodium biphosphate and sodium phosphate)
D) Castile soap and warm water mix
Rationale: Hypertonic solutions pull fluid out of the interstitial spaces and into the colon by
osmosis, stimulating peristalsis. The Fleet enema is a classic example of a pre-packaged
hypertonic enema. Tap water is hypotonic, soapsuds is an irritant, and castile soap is mixed with
water, not hypertonic by nature. Therefore, option C is correct.
Question 5: A nurse is preparing a cleansing enema for an adult patient. What is the
recommended temperature range for the enema solution to prevent thermal injury or chilling?
A) Ninety-five to ninety-eight degrees Fahrenheit
B) C) One hundred to one hundred five degrees Fahrenheit
D) One hundred ten to one hundred fifteen degrees Fahrenheit
Rationale: The enema solution must be warm, specifically between one hundred and one
hundred five degrees Fahrenheit (thirty-seven point eight to forty point six degrees Celsius), to
ensure patient comfort and prevent internal tissue damage or chilling. Solution that is too cold
causes severe cramping, while solution that is too hot can burn the delicate rectal mucosa.
Question 6: At what distance should the nurse insert the lubricated rectal tube into the rectum of
an adult patient during an enema procedure?
,Page |3
A) One to two inches
B) C) Three to four inches
D) Five to six inches
Rationale: For an adult, the lubricated rectal tube should be inserted three to four inches (seven
point five to ten centimeters) pointing in the direction of the umbilicus. Inserting it less than
three inches risks ballooning the tube in the anal sphincter rather than the rectum, while
inserting it further increases the risk of damaging the intestinal wall.
Question 7: A patient is prescribed an oil-retention enema. What is the primary therapeutic
mechanism of action for this type of enema?
A) To irritate the bowel wall and stimulate immediate peristalsis
B) C) To lubricate the rectum and colon while softening hardened stool
D) To absorb excess systemic toxins from the lower gastrointestinal tract
Rationale: Oil-retention enemas introduce mineral oil or olive oil into the colon. The oil is
retained for a period, typically one to three hours, to coat and soften hard fecal masses, making
them easier to pass naturally. They do not work by immediate irritation or toxin absorption,
making option C correct.
Question 8: A nurse is caring for a patient who exhibits signs of a vasovagal response during an
enema procedure, including pallor, diaphoresis, and a heart rate of fifty beats per minute. What is
the priority nursing intervention?
A) Continue the enema quickly to finish the procedure
B) C) Immediately stop the procedure, remove the tube, and assess vital signs
D) Administer oral fluids immediately
Rationale: Stimulation of the vagal nerve during rectal manipulation or rapid distension can
cause severe bradycardia, hypotension, and fainting. The immediate priority is to halt the
stimulus by stopping the procedure and removing the tube, followed by assessing the patient and
notifying the primary provider if symptoms persist. Option C is the correct safety response.
Question 9: Which patient condition represents an absolute contraindication for the
administration of any type of enema?
A) Mild chronic constipation
B) C) Recent rectal or bowel surgery with fresh suture lines
D) Mild hemorrhoids without bleeding
Rationale: Recent rectal, colon, or pelvic surgeries create fragile suture lines that can easily
rupture under the pressure of fluid instillation or mechanical tube insertion, leading to severe
hemorrhage or dehiscence. Mild constipation, hemorrhoids, and diagnostic preparations are
standard indications where enemas are frequently utilized with caution.
Question 10: A nurse is administering a large-volume cleansing enema to an adult. How high
above the patient's hips should the nurse hang the enema bag?
A) Six to twelve inches
B) C) Twelve to eighteen inches
D) Twenty-four to thirty inches
Rationale: The height of the enema container dictates the speed and pressure at which the fluid
enters the colon. For an adult, hanging the container twelve to eighteen inches (thirty to forty-
, Page |4
five centimeters) above the anus provides safe and controlled gravitational flow. Hanging it too
high increases pressure and causes cramping.
Question 11: A nurse needs to expel flatus from a post-operative patient experiencing abdominal
distension. Which specific type of enema should the nurse anticipate administering?
A) Cleansing enema
B) C) Carminative enema
D) Oil-retention enema
Rationale: A carminative enema, such as a milk and molasses enema, is specifically formulated
to release flatus from the colon and relieve gaseous distension. Cleansing enemas remove stool,
oil-retention enemas soften stool, and medicated enemas introduce systemic or local drugs.
Option C is correct.
Question 12: A patient asks why a normal saline enema is considered safer than a tap water
enema for pediatric patients or individuals with heart failure. What is the nurse's best response?
A) Normal saline is cheaper to purchase in commercial settings
B) C) Normal saline is isotonic and prevents dangerous fluid and electrolyte shifts
D) Normal saline stimulates faster bowel evacuation than tap water
Rationale: Tap water is hypotonic. When introduced into the colon, it can be absorbed across
the intestinal membrane into the bloodstream, leading to water toxicity, circulatory overload,
and electrolyte imbalances. Normal saline is isotonic (same osmotic pressure as bodily fluids),
making it safe against fluid shifts. Option C is correct.
Question 13: Before administering an enema, the nurse primes the tubing by allowing a small
amount of solution to flow through. What is the primary purpose of this step?
A) To warm the external tubing material
B) C) To expel air from the tubing so it is not introduced into the patient's colon
D) To test the chemical pH of the liquid
Rationale: Priming the tubing removes trapped air inside the plastic line. Introducing air into
the rectum and colon can cause significant cramping and painful abdominal distension for the
patient. Option C accurately identifies the mechanical safety rationale.
Question 14: A nurse is preparing a return-flow enema, also known as a Harris flush. What is the
primary clinical objective of this procedure?
A) To cleanse the entire large intestine prior to surgery
B) C) To help the patient expel flatus when other measures fail
D) To deliver systemic medication through the rectal mucosa
Rationale: A return-flow enema is designed to manage and relieve trapped gas. The procedure
involves alternating the instillation and lowering of a small volume of fluid (one hundred to two
hundred milliliters) into and out of the rectum to stimulate peristalsis and release flatus. Option
C is correct.
Question 15: During the insertion of a rectal tube for an enema, the nurse feels resistance as the
tube enters the anal canal. What should the nurse do next?
A) Force the tube gently past the resistance using firm pressure
