Accident-Error Prevention Practice Test 1
Accident-Error Prevention NCLEX Practice Test
Accident-Error Prevention, within the NCLEX test plan under Safe and Effective Care Environment → Safety and Infection Control, reflects the core knowledge domains and conceptual competencies directly related to what the exam evaluates. The targeted number of questions is 50; designed with realistic clinical scenarios and conceptual variety to help you identify both your strengths and improvement areas.
This test is the 1st part of the Accident-Error Prevention section. To explore all practice tests under this topic, use the “Back to Main Topic” button at the end of the page.
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In the Accident-Error Prevention Study Cards section, shared by real NCLEX candidates, you’ll find concise summaries and high-yield insights related to the most tested concepts. It’s a perfect space to reinforce challenging topics and sharpen your recall through quick, focused repetitions. Short, powerful, and repeatable!
Accident-Error Prevention Practice Test 1
The nurse is preparing to administer an enteral feeding to a client via an nasogastric feeding tube. The MOST important action of the nurse is?
- Verify correct placement of the tube
- Check that the feeding solution matches the dietary order
- Aspirate abdominal contents to determine the amount of last feeding remaining in stomach
- Ensure that feeding solution is at room temperature
Explanation: Answer reason: The highest-priority action before administering any enteral feeding is to verify correct NG tube placement. Incorrect placement can lead to catastrophic errors such as aspiration, pneumonitis, or direct infusion of formula into the lungs. Confirming placement prevents these potentially life-threatening complications and is the primary safety check.
The home health nurse is visiting a client with Paget's disease. An important part of preventive care for this client is?
- Keeping the environment free of clutter.
- Advise the client to see the dentist regularly.
- Encouraging the client to receive the influenza vaccine.
- Tell the client to take a daily multivitamin.
Explanation: Answer reason: Paget disease of bone causes bone deformity and fragility, increasing the risk of falls and fractures. Keeping the home free of clutter is a key preventive safety measure to reduce the risk of falls. Other options are not specific primary prevention strategies for this condition.
The nurse is preparing a client for surgery. Which item is most important to remove before sending the client to surgery?
- Hearing aid
- Contact lenses
- Wedding ring
- Artificial eye
Explanation: Answer reason: Contact lenses must be removed preoperatively to prevent corneal drying and abrasion when protective eye reflexes are diminished under anesthesia. Hearing aids and rings may be managed or taped; an artificial eye poses less immediate risk.
The parents of a toddler ask the nurse how long their child will have to sit in a car seat while in the automobile. The best response is: The child needs to use a car seat until the child...?
- It weighs at least 40 pounds.
- Is at least 5 years old.
- It is 50 inches tall.
- They are content to use a regular seat belt.
Explanation: Answer reason: Child passenger safety guidelines recommend a car seat until the child reaches about 40 lb; age, height, or willingness do not ensure proper restraint fit or protection.
The mother of a 9-year-old with asthma has brought an electric CD player for her son to listen to while he receives oxygen therapy. The nurse should?
- Explain that he does not need the added stimulation.
- Allow the player, but ask him to wear earphones.
- Tell the mother that he cannot have items from home.
- Ask the mother to bring a battery-operated CD instead.
Explanation: Answer reason: Oxygen supports combustion; plug-in electrical devices can spark and increase the risk of fire. A battery-operated player is the safest choice.
If the nurse is taking a rectal temperature on an infant, how far should the thermometer be inserted into the rectum?
- 1/2 inch
- 1 inch
- 1 1/2 inches
- 2 inches
Explanation: Answer reason: For infants, the rectal thermometer is inserted about 0.5 inches (1.3 cm) to obtain an accurate reading while avoiding rectal injury; deeper insertion is for older children.
When preparing a client for admission to the surgical suite, the nurse recognizes which of the following items is most important to remove before sending the client to surgery?
- Hearing aid
- Contact lenses
- Wedding ring
- Dentures
Explanation: Answer reason: Dentures can dislodge during induction and intubation, posing a risk of airway obstruction and aspiration. Contact lenses, hearing aids, and wedding rings are less critical; the ring can be taped, and hearing aids are often left in until anesthesia starts.
When admitting an elderly patient, what is an effective nursing action to prevent disorientation?
- Secure side rails in the up position at all times.
- Do routine rounds.
- Leave a night light.
- Orient the patient every night before going to sleep.
Explanation: Answer reason: A nightlight reduces sensory deprivation and helps maintain orientation in unfamiliar surroundings, decreasing nighttime confusion and the risk of falls in older adults.
Which of the following is a safe game for a child with hemophilia?
- Soccer
- Basketball
- Swimming
- Field hockey
Explanation: Answer reason: Children with hemophilia should avoid contact sports that increase trauma and bleeding risk. Swimming is a low-impact, non-contact activity that minimizes joint injury.
The nurse is caring for a client with an acoustic neuroma brain tumor. The location of this tumor warrants which of the following nursing diagnosis as the highest priority?
- High risk for constipation
- Fluid volume deficit
- Ineffective coping
- High risk for injury
Explanation: Answer reason: Acoustic neuroma involves the vestibulocochlear nerve, leading to vertigo and balance disturbances. Preventing falls and injury is the highest immediate priority.
In which of the following clients is a rectal temperature most usually contraindicated?
- Client who has had myocardial infarction
- Client with Parkinson's disease
- Client who is prone to seizures
- Client with neuropathology associated with diabetes
Explanation: Answer reason: Rectal temperatures can stimulate the vagus nerve and precipitate bradycardia or dysrhythmias, which is especially risky after myocardial infarction. The other conditions are not standard contraindications. Category reason: This is a nursing safety question about avoiding a harmful assessment technique, fitting Safety and Infection Control under the NCLEX framework.
Which comment by the mother of an 18-month-old girl indicates she understands safety concerns?
- I will keep her all of the time; I will not let her out of my sight.
- When she says 'no-no,' then she understands right and wrong.
- I will need to be sure that the locks on the medicine cabinet are secure.
- I will be sure to give her syrup of ipecac if she swallows poison.
Explanation: Answer reason: Toddlers are highly curious and at risk for unintentional poisoning; securing medications with cabinet locks is an appropriate safety measure. Constant supervision is unrealistic, toddlers don’t fully understand right/wrong at 18 months, and syrup of ipecac is no longer recommended for poison ingestion.
Nurses must protect themselves and clients from dangerous shocks by keeping their hands dry when manipulating machinery, mopping spilled fluid, ensuring that all plugs are grounded and reporting any equipment damage is called?
- Radiation safety
- Firearm safety
- Electrical safety
- Fire safety
Explanation: Answer reason: Keeping hands dry, mopping spills, ensuring grounded plugs, and reporting equipment damage are measures to prevent electrical shock—i.e., electrical safety.
The nurse is caring for a client with a history of falls. What safety intervention is essential for preventing falls in this client?
- Keeping the room well-lit
- Encouraging the use of slip-on shoes
- Restraining the client in bed
- Encouraging independent ambulation
Explanation: Answer reason: Adequate lighting reduces tripping hazards and improves visibility, a key fall-prevention measure. Slip-on shoes are unstable, restraints increase injury risk, and independent ambulation is unsafe for a high fall-risk client.
Which of the following is NOT a role of occupational health?
- Prevention of workplace accident & injury
- Promotion of health and work ability
- Improving environment health for occupational health workers
- Improve the productivity outcome of workers
Explanation: Answer reason: Occupational health aims to protect and promote workers’ health, prevent workplace injuries, improve working environments, and support productivity. Option C misidentifies the target group (occupational health staff) rather than all workers, so it is not a stated role.
What is the most appropriate nursing diagnosis for a patient requiring anticoagulation therapy who has a history of frequent falls?
- Risk for Impaired Skin Integrity
- Risk for Injury
- Knowledge Deficit
- Ineffective Health Maintenance
Explanation: Answer reason: A patient on anticoagulants with frequent falls is at high risk for serious bleeding and trauma; the priority nursing diagnosis is Risk for Injury.
The Joint Commission for Accreditation of Hospital Organizations (JCAHO) specifies that two client identifiers are to be used before administering medication. Which method is best for identifying patients using two patient identifiers?
- Take the medication administration record (MAR) to the room and compare it with the name and medical number recorded on the armband.
- Compare the medication administration record (MAR) with the client’s room number and name on the armband.
- Request that a family member identify the client and then ask the client to state his name.
- Ask the client to state his full name and then to write his full name.
Explanation: Answer reason: Best practice is to use two acceptable identifiers (e.g., name and medical record number) verified against the armband and MAR. Room number and family identification are not acceptable identifiers, and repeating the same identifier (name) twice is insufficient.
A client with a history of falls is admitted to the hospital. What is the priority nursing intervention to prevent falls in this client?
- Administering a sedative at bedtime
- Keeping the room well-lit
- Encouraging the use of slip-on shoes
- Restraining the client in bed
Explanation: Answer reason: Good lighting reduces tripping hazards and improves orientation. Sedatives increase fall risk, slip-on shoes are unsafe, and restraints are not a first-line fall-prevention strategy.
The nurse is caring for a client with a seizure disorder. During a seizure, what is the priority nursing intervention?
- Administering antiepileptic medication
- Protecting the client from injury
- Placing a tongue depressor in the mouth
- Restraining the client's limbs
Explanation: Answer reason: During a seizure, the immediate priority is client safety—protect from injury by removing hazards, padding side rails, and positioning as able. Medications are given after or for status epilepticus, nothing should be placed in the mouth, and limbs should not be restrained.
The nurse is discussing accident prevention with parents. Which of the following should the nurse emphasize is at HIGHEST risk for poisoning?
- Nine month-old who stays with a sitter five days a week
- Twenty month-old who has just learned to climb stairs
- Ten year-old who occasionally stays at home unattended
- Fifteen year-old who likes to repair bicycles
Explanation: Answer reason: Toddlers (around 1–3 years) are at highest poisoning risk due to increased mobility and curiosity, leading to exploration and ingestion of toxic substances. Infants and older children are comparatively less prone.
A rectal temperature is not taken when a person?
- Is unconscious
- Needs a core body temperature measurement
- Has a nasogastric tube
- Has had rectal surgery
Explanation: Answer reason: Rectal temperature is contraindicated after rectal surgery because it can cause trauma, bleeding, or vagal stimulation. Rectal temps can be used for unconscious patients and provide core temperature; an NG tube does not preclude rectal measurement.
Which child is at greatest risk for accidental poisoning assuming normal cognitive and emotional development?
- 6-month-old
- 4-year-old
- 10-year-old
- 13-year-old
Explanation: Answer reason: Toddlers and preschoolers are the most at risk for accidental poisoning due to increased mobility, curiosity, and oral exploration; among the choices, the 4-year-old fits this highest-risk group.
What is the primary goal during a seizure?
- Insert an oral airway
- Restrain the patient immediately
- Give oxygen
- Protect the patient from injury
Explanation: Answer reason: Priority during an active seizure is client safety—clear surroundings, pad rails, and prevent injury. Do not insert objects into the mouth or restrain; oxygen may be provided after ensuring safety.
The nurse is teaching the parents of an infant with osteogenesis imperfecta. The nurse should explain the need for?
- Additional calcium in the infant's diet
- Careful handling to prevent fractures
- Providing extra sensorimotor stimulation
- Frequent testing of visual function
Explanation: Answer reason: Osteogenesis imperfecta causes fragile bones due to collagen defects, making infants highly susceptible to fractures. Priority teaching is careful handling to prevent injury; extra calcium or sensorimotor stimulation are not primary needs, and routine visual testing is not indicated.
The home health nurse is visiting an 18-year-old with osteogenesis imperfecta. Which information obtained on the visit would cause the most concern? The client?
- Likes to play football
- Drinks carbonated drinks
- Has two sisters
- Is taking acetaminophen for pain
Explanation: Answer reason: Osteogenesis imperfecta causes fragile bones with high fracture risk; contact sports like football greatly increase injury risk and are contraindicated.
A client with AIDS is admitted with a diagnosis of Pneumocystis jirovecii pneumonia. Shortly after his admission, he becomes confused and disoriented. He attempts to pull out his IV and refuses to wear an O2 mask. Based upon his mental status, the priority nursing diagnosis is?
- Social isolation
- Risk for injury
- Ineffective coping
- Anxiety
Explanation: Answer reason: Confusion and disorientation with attempts to remove lines and refusal of O2 create immediate safety hazards; preventing self-injury is the highest priority.
A client has ataxia following a cerebral vascular accident. The nurse should?
- Supervise the client's ambulation
- Measure the client's intake and output
- Request a consult for speech therapy
- Provide the client with a magic slate
Explanation: Answer reason: Ataxia causes poor coordination and balance after stroke, creating a high fall risk. The priority is to supervise ambulation. The other options address issues like fluid balance or communication deficits, not ataxia.
The nurse is teaching the parents of an infant with osteogenesis imperfecta. The nurse should tell the parents?
- That the infant will need daily calcium supplements
- That it is best to lift the infant by the buttocks when diapering
- That the condition is a temporary one
- That only the bones of the infant are affected by the disease
Explanation: Answer reason: Osteogenesis imperfecta causes extreme bone fragility; during diapering the infant should not be lifted by the ankles. Lifting by the buttocks reduces fracture risk. Calcium supplements don’t correct the collagen defect, the condition is lifelong, and extra-skeletal features (e.g., blue sclera, hearing/dental issues) occur.
The home health nurse is visiting an elderly client following a hip replacement. Which finding requires further teaching?
- The client shares her apartment with a cat.
- The client has a grab bar near the commode.
- The client usually sits on a soft, low sofa.
- The client wears supportive shoes with nonskid soles.
Explanation: Answer reason: A soft, low sofa promotes hip flexion beyond 90 degrees and makes rising difficult, increasing risk of dislocation and falls after hip replacement. Grab bars and nonskid shoes are appropriate; having a pet is not inherently unsafe with precautions.
What position should the nurse place the patient in when they are experiencing a seizure?
- Supine position
- Prone position
- Lateral position
- Dorsal recumbent
Explanation: Answer reason: Place the patient in a side-lying position during a seizure to keep the airway open and allow secretions to drain, reducing aspiration risk. Supine, prone, or dorsal recumbent do not protect the airway.
Nurse Renor is about to perform Romberg’s test to zakir. To ensure the latter’s safety, which intervention should nurse Renor implement?
- Allowing the client to keep his eyes open
- Having the client hold on to furniture
- Letting the client spread his feet apart
- Standing close to provide support
Explanation: Answer reason: During the Romberg test the client stands with feet together and eyes closed, increasing fall risk. The nurse should stand close to guard and prevent a fall.
The nurse enters the room as a three year-old is having a generalized seizure. Which of the following should the nurse do FIRST?
- Clear the area of any hazards
- Place the child on the side
- Restrain the child
- Give the prescribed anticonvulsant
Explanation: Answer reason: During an active seizure the priority is airway protection. Side-lying positioning helps maintain a patent airway and reduces aspiration risk. Do not restrain; medications and clearing hazards follow after ensuring airway and safety.
When teaching a client with chronic obstructive pulmonary disease about oxygen by cannula, the nurse should also instruct the client's family to?
- Avoid smoking near the client
- Turn off oxygen during meals
- Adjust the liter flow to 10 as needed
- Remind the client to keep mouth closed
Explanation: Answer reason: Oxygen supports combustion; smoking near oxygen equipment poses a fire hazard. The family should not adjust flow rates, oxygen should not be turned off for meals, and keeping the mouth closed is irrelevant.
A four year-old hospitalized child begins to have a seizure while playing with hard plastic toys in the hallway. Of the following nursing actions, which one should the nurse do FIRST?
- Place the child in the nearest bed
- Administer IV medication to slow down the seizure
- Place a padded tongue blade in the child's mouth
- Remove the child's toys from the immediate area
Explanation: Answer reason: During an active seizure, the first priority is safety—remove nearby hard objects to prevent injury. Do not place items in the mouth or move the child unnecessarily; medications may follow once safety is ensured.
While assessing the quality of home care for a client with Alzheimer's disease, the PRIORITY for the nurse is to emphasize?
- Good nutrition
- Family counseling
- Client safety
- Medication compliance
Explanation: Answer reason: Clients with Alzheimer's are at high risk for injury and wandering; safety is the highest priority over nutrition, counseling, or medication adherence.
Which of the following is MOST hazardous to an 8 month-old child?
- Riding in a car
- Falling off a bed
- Electrical outlets
- Eating peanuts
Explanation: Answer reason: Peanuts pose a high choking/aspiration risk for infants; airway obstruction is a leading cause of injury death in young children.
Nurse Jane is visiting a client at home and is assessing him for risk of a fall. The most important factor to consider in this assessment is?
- Correct illumination of the environment.
- Amount of regular exercise.
- The resting pulse rate.
- Status of salt intake.
Explanation: Answer reason: Home fall risk is primarily related to environmental hazards; adequate lighting is a key determinant to prevent trips and missteps. The other options are less directly related to immediate fall risk.
Mrs. Parker, a 70-year-old woman with severe macular degeneration, is admitted to the hospital the day before scheduled surgery. The nurse's preoperative goals for Mrs. M. would include?
- Independently ambulating around the unit.
- Reading the routine preoperative education materials.
- Maneuvering safely after orientation to the room.
- Using a bedpan for elimination needs.
Explanation: Answer reason: Severe macular degeneration limits vision, so the key preoperative safety goal is orienting the patient to the room and ensuring safe maneuvering. Independent unit ambulation is unsafe, reading materials may be ineffective, and a bedpan is unnecessary without mobility limitations.
When a client is having a general tonic clonic seizure, the nurse should?
- Hold the client's arms at their side
- Place the client on their side
- Insert a padded tongue blade in client's mouth
- Elevate the head of the bed
Explanation: Answer reason: Side-lying maintains airway patency and allows secretions to drain, reducing aspiration risk during a seizure. Do not restrain limbs or place objects in the mouth; elevating the head alone is insufficient.
Which type of accidental poisoning would the nurse expect to occur in children under age six?
- Oral ingestion
- Topical contact
- Inhalation
- Eye splashes
Explanation: Answer reason: Young children most commonly ingest toxic substances orally; other exposure routes are less frequent.
Alcohol and drug abuse impairs judgment and increases risk taking behavior. What nursing diagnosis BEST applies?
- Risk for injury
- Risk for knowledge deficit
- Altered thought process
- Disturbance in self-esteem
Explanation: Answer reason: Substance intoxication impairs judgment and increases risk-taking, making safety the priority; the most appropriate diagnosis is Risk for injury.
The nurse is teaching parents how to reduce risks in the home, the most important consideration is?
- Age and knowledge level of the parents
- Proximity to emergency services
- Number of children in the home
- Age of children in the home
Explanation: Answer reason: Safety teaching must be developmentally appropriate. The risks and necessary precautions differ dramatically between infants, toddlers, school-aged children, and adolescents, so the age of the children dictates what hazards and prevention strategies are most critical.
When collecting a specimen, there is a correct order to draw in order to not contaminate the next tube. What is the order of draw?
- Pink, green, gray, blue, red, yellow, orange, white
- Yellow, red, pink, white, gray, orange, blue, green
- Green, yellow, red, pink, blue, orange, white, gray
- Yellow, blue, red, orange, green, pink, white, gray
Explanation: Answer reason: CLSI order of draw to prevent additive carryover: blood cultures (yellow), coagulation (light blue), serum tubes (red/orange), heparin (green), EDTA tubes (pink/white), then glycolytic inhibitor (gray). Option D matches this sequence.
The nurse is planning discharge for a 90 year-old client with musculo-skeletal weakness. Which of the following interventions would be MOST effective in preventing falls?
- Place nightlights in bedroom
- Wear eyeglasses at all times
- Install grab bars in the bathroom
- Teach muscle strengthening exercises
Explanation: Answer reason: Improving lighting in the bedroom reduces nighttime trips and is the most immediate, high-impact environmental change to prevent falls in older adults. Glasses, grab bars, and exercise can help but are less universally effective or not as immediate.
An 8 year-old client is admitted to the hospital for surgery. The child's parent reports several allergies. Which of the following should all health care personnel be aware of?
- Shellfish
- Molds
- Balloons
- Perfumed soap
Explanation: Answer reason: Allergy to balloons suggests latex allergy; all staff must avoid latex products and use non-latex gloves to prevent a reaction.
An older adult client is identified as being at high risk for falls. Which nursing intervention is MOST appropriate to help prevent falls?
- Keep the bed in the lowest position with the wheels locked
- Encourage the client to ambulate independently without supervision
- Place personal items on the far side of the bedside table
- Turn off nightlights to promote undisturbed sleep
- Raise all side rails as a form of restraint
Explanation: Answer reason: A low, locked bed significantly reduces injury if the patient attempts to get out unassisted. Encouraging unsupervised ambulation increases fall risk, poor lighting promotes accidents, and raising all side rails is considered a restraint and is unsafe.
A nurse is caring for an elderly patient who is at high risk for falls. Which intervention should be implemented?
- Keep the bed in the highest position.
- Turn off most of the lights in the room at night to promote sleep.
- Encourage the patient to wear non-slip footwear when out of bed.
- Place frequently used items on the far side of the bedside table.
- Use side rails as restraints to keep the patient in bed.
Explanation: Answer reason: Non-slip footwear directly decreases the risk of slipping and improves stability during ambulation, making it an evidence-based fall-prevention intervention. Keeping the bed high, dim lighting, placing items out of reach, and using side rails as restraints all increase the risk of injury.
A nurse is preparing to administer a medication but notices that two clients on the unit have the same last name. What is the nurse’s **priority action** to prevent an error?
- Ask the client to state their room number
- Verify the client’s identity with two identifiers, such as name and date of birth
- Confirm with another nurse that the medication belongs to this client
- Compare the medication label with the client’s diagnosis
Explanation: Answer reason: Using two patient identifiers (name + DOB) is the foundational error-prevention step endorsed by safety guidelines. Room numbers and diagnoses are unreliable and prohibited as identifiers.
A nurse enters a client’s room and finds the bed in a high position, side rails down, and the call light out of reach. The client is confused and attempting to get up. What is the **best action** to prevent an accident?
- Raise all four side rails to keep the client from getting out of bed
- Place the client in a chair with a lap belt to prevent falls
- Lower the bed to the lowest position and place the call light within reach
- Turn off the overhead lights to reduce stimulation
Explanation: Answer reason: The safest immediate action is reducing fall risk by lowering the bed and making the call light accessible. Four side rails constitute a restraint, and restraints/lap belts are not first-line fall-prevention strategies.
A nurse enters the medication room and finds an unlabeled syringe filled with a clear liquid left on the counter. No staff members are present. What is the nurse’s best action to prevent a medication error?
- Ask the next nurse who comes in whether the syringe belongs to them
- Label the syringe based on the medication most commonly used on the unit
- Save the syringe and wait for the provider to identify it
- Discard the syringe immediately according to facility policy
Explanation: Answer reason: Any unlabeled medication must be considered unsafe and discarded. Identifying or assuming its contents is dangerous and violates medication safety standards. Nurses must never administer or “guess” the medication.
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