NUR125 Exam Study Guide –
Practice Questions with
Answers. GRADED A+. Latest
2026/2027 Update.
Which oxygen delivery system provides the most precise oxygen delivery
without intubation? - Ans✔✔-VEnturi device
Restlessness and irritability are ________ signs of hypoxia? - Ans✔✔-Early
Other signs: Anxiety, confusion, tachycardia
What are the late signs of hypoxia? - Ans✔✔-decreased consciousness,
increased lactic levels (lactic acidosis), bradypnea, bradycardia, cyanosis
Sleep apnea that patient has a disruption in sleep that lasts at least ___
seconds and occurs more than ___ times an hour? - Ans✔✔-10 seconds, 5
times an hour.
The nurse is monitoring the patient who is 24 hours post-opt from surgery.
Which finding requires intervention?*
A. BP 100/80
B. 24-hour urine output of 300 ml
,C. Pain rating of 4 on 1-10 scale
D. Temperature of 99.3' F - Ans✔✔-B. 24-hour urine output of 300 ml
Urinary output within a 24-hour period should be at least 30 ml/hr. In this case,
the patient is only urinating 12.5 ml/hr.
A patient reports he hasn't had a bowel movement or passed gas since surgery.
On assessment, you note the abdomen is distended and no bowel sounds are
noted in the four quadrants. You notify the MD. What non-invasive nursing
interventions can you perform without a MD order?
A. Insert a nasogastric attached to intermittent suction
B. Administer IV fluids
C. Encourage ambulation, maintain NPO status, and monitor intake & output
D. Encourage at least 3000 ml of fluids per day - Ans✔✔-C. Encourage
ambulation, maintain NPO status, and monitor intake & output
This patient is most likely experiencing a paralytic ileus which is failure for the
bowels to move its contents. -
Inserting a NG tube or administering IV fluids is invasive and requires a MD
order. Patients with potential paralytic ileus are to be NPO (nothing by mouth)
so encouraging fluid intake is incorrect.
What is a potential postoperative concern regarding a patient who has already
resumed a solid diet?
A. Failure to pass stool within 12 hours of eating solid foods
B. Failure to pass stool within 48 hours of eating solid foods
C. Passage of excessive flatus
,D. Patient reports a decreased appetite - Ans✔✔-B. Failure to pass stool within
48 hours of eating solid foods
What are the 6 steps in the chain of infection? - Ans✔✔-1. Infectious agent
(bacteria, virus)
2. Reservoir (human, animal, environ)
3. Portal of exit (respiratroy tract, blood)
4. Mod of transmission (contact, air, drop)
5. Portal of entry (nose, mucous, broken skin)
6. Susceptible host
Whats the #1 way a nurse can break the chain of infection? - Ans✔✔-
Handwashing
Name four types of infection - Ans✔✔-1. Localized (wound redenss, pus)
2. Systemic (fever, sepsis)
3. HAIs (CAUTI, CLABSI) - obtained in healthcare facility
4. Community-acquired (flu, covid)
Define Medical Asepsis - Ans✔✔-Clean techniques- reduces microorganisms
(hand washing, routine cleaning) - used for vital signs, oral care.
Define surgical asepsis - Ans✔✔-Removing all microorganisms from an
environment
Used for invasive procedures (catheterization, wound dressing, surgery)
, Prevents contamination of open wounds, sterile body cavities like airways,
urethra
What are the 7 Principles of Surgical Asepsis - Ans✔✔-1. Sterile object remains
sterile only when touched by another sterile object (clean hands, clean field).
2. Only sterile objects on sterile fields.
3. Sterile items out of vision or below waist/1 inch from field edge are
contaminated.
4. Sterile fields must stay dry; moisture allows microbial migration. (NO WET
COTTONBALLS)
5. Prolonged air exposure contaminates fields (Don't set up, pre-open too
early)
6. Skin cannot be sterilized; avoid skin contact with sterile items.
7. Movement around field: Face sterile area, avoid reaching over, keep 1-foot
distance.
What labs/diagnostics are used to determine a possible infection? - Ans✔✔-
WBC (leukocytosis >10,000/mm3), elevated CRP and ESR (inflammation
markers), cultures (blood, urine, wound), imaging (Chest XR for pneumonia,
cysts or internal postules)
What are best practices with hand hygiene? - Ans✔✔-Alcohol-based (60-95%)
→ 15 sec
Soap & water → 20 sec
C. diff = SOAP & WATER ONLY
Before/after patient contact
After glove removal
Practice Questions with
Answers. GRADED A+. Latest
2026/2027 Update.
Which oxygen delivery system provides the most precise oxygen delivery
without intubation? - Ans✔✔-VEnturi device
Restlessness and irritability are ________ signs of hypoxia? - Ans✔✔-Early
Other signs: Anxiety, confusion, tachycardia
What are the late signs of hypoxia? - Ans✔✔-decreased consciousness,
increased lactic levels (lactic acidosis), bradypnea, bradycardia, cyanosis
Sleep apnea that patient has a disruption in sleep that lasts at least ___
seconds and occurs more than ___ times an hour? - Ans✔✔-10 seconds, 5
times an hour.
The nurse is monitoring the patient who is 24 hours post-opt from surgery.
Which finding requires intervention?*
A. BP 100/80
B. 24-hour urine output of 300 ml
,C. Pain rating of 4 on 1-10 scale
D. Temperature of 99.3' F - Ans✔✔-B. 24-hour urine output of 300 ml
Urinary output within a 24-hour period should be at least 30 ml/hr. In this case,
the patient is only urinating 12.5 ml/hr.
A patient reports he hasn't had a bowel movement or passed gas since surgery.
On assessment, you note the abdomen is distended and no bowel sounds are
noted in the four quadrants. You notify the MD. What non-invasive nursing
interventions can you perform without a MD order?
A. Insert a nasogastric attached to intermittent suction
B. Administer IV fluids
C. Encourage ambulation, maintain NPO status, and monitor intake & output
D. Encourage at least 3000 ml of fluids per day - Ans✔✔-C. Encourage
ambulation, maintain NPO status, and monitor intake & output
This patient is most likely experiencing a paralytic ileus which is failure for the
bowels to move its contents. -
Inserting a NG tube or administering IV fluids is invasive and requires a MD
order. Patients with potential paralytic ileus are to be NPO (nothing by mouth)
so encouraging fluid intake is incorrect.
What is a potential postoperative concern regarding a patient who has already
resumed a solid diet?
A. Failure to pass stool within 12 hours of eating solid foods
B. Failure to pass stool within 48 hours of eating solid foods
C. Passage of excessive flatus
,D. Patient reports a decreased appetite - Ans✔✔-B. Failure to pass stool within
48 hours of eating solid foods
What are the 6 steps in the chain of infection? - Ans✔✔-1. Infectious agent
(bacteria, virus)
2. Reservoir (human, animal, environ)
3. Portal of exit (respiratroy tract, blood)
4. Mod of transmission (contact, air, drop)
5. Portal of entry (nose, mucous, broken skin)
6. Susceptible host
Whats the #1 way a nurse can break the chain of infection? - Ans✔✔-
Handwashing
Name four types of infection - Ans✔✔-1. Localized (wound redenss, pus)
2. Systemic (fever, sepsis)
3. HAIs (CAUTI, CLABSI) - obtained in healthcare facility
4. Community-acquired (flu, covid)
Define Medical Asepsis - Ans✔✔-Clean techniques- reduces microorganisms
(hand washing, routine cleaning) - used for vital signs, oral care.
Define surgical asepsis - Ans✔✔-Removing all microorganisms from an
environment
Used for invasive procedures (catheterization, wound dressing, surgery)
, Prevents contamination of open wounds, sterile body cavities like airways,
urethra
What are the 7 Principles of Surgical Asepsis - Ans✔✔-1. Sterile object remains
sterile only when touched by another sterile object (clean hands, clean field).
2. Only sterile objects on sterile fields.
3. Sterile items out of vision or below waist/1 inch from field edge are
contaminated.
4. Sterile fields must stay dry; moisture allows microbial migration. (NO WET
COTTONBALLS)
5. Prolonged air exposure contaminates fields (Don't set up, pre-open too
early)
6. Skin cannot be sterilized; avoid skin contact with sterile items.
7. Movement around field: Face sterile area, avoid reaching over, keep 1-foot
distance.
What labs/diagnostics are used to determine a possible infection? - Ans✔✔-
WBC (leukocytosis >10,000/mm3), elevated CRP and ESR (inflammation
markers), cultures (blood, urine, wound), imaging (Chest XR for pneumonia,
cysts or internal postules)
What are best practices with hand hygiene? - Ans✔✔-Alcohol-based (60-95%)
→ 15 sec
Soap & water → 20 sec
C. diff = SOAP & WATER ONLY
Before/after patient contact
After glove removal
