ATI RN Fundamentals Content Mastery Series Test
Bank |Verified Questions & Explanations | Updated
2026/2027 Review Chamberlain University
This premium study guide is meticulously designed to mirror the actual ATI RN Fundamentals Content
Mastery Series proctored exam blueprint. Each multiple-choice question features an instant, high-
impact distractor analysis alongside a verified updated answer to maximize your clinical reasoning skills.
Ideal for nursing students seeking a comprehensive, rapid-fire breakdown of safety, infection control,
pharmacology, and core physiological nursing interventions
Question 1
A nurse is caring for a client who is post-operative and reporting a pain level of 8 on a
scale of 0 to 10. Which of the following actions should the nurse take first?
A) Document the client's report of pain in the electronic medical record.
B) Administer the prescribed oral analgesic medication.
C) Inspect the surgical incision site for complications.
D) Review the client's medical history for a history of substance abuse.
VERIFIED UPDATED ANSWER: C) Inspect the surgical incision site for
complications.
EXPLANATION: Using the nursing process, the nurse must always assess the
client before implementing an intervention. Inspecting the surgical site allows the
nurse to rule out acute complications (e.g., hemorrhage, dehiscence) causing
sudden severe pain before administering medication. Documenting or looking up
past history are secondary actions that delay immediate safety verification.
Question 2
A nurse is preparing to administer an intramuscular (IM) injection to an obese adult
client. Which of the following needles should the nurse select for the injection?
A) 25-gauge, 5/8-inch needle
B) 21-gauge, 1.5-inch needle
C) 18-gauge, 1-inch needle
D) 22-gauge, 1/2-inch needle
, VERIFIED UPDATED ANSWER: B) 21-gauge, 1.5-inch needle
EXPLANATION: Intramuscular injections in an average or obese adult require a
needle length of 1.5 inches to effectively bypass adipose tissue and reach the
deep muscle mass. A 5/8-inch or 1/2-inch needle is too short and will deliver
medication into subcutaneous tissue. An 18-gauge needle has a lumen diameter
that is unnecessarily large and painful for a standard IM injection.
Question 3
A nurse is performing a standard hand hygiene procedure using an alcohol-based hand
rub. Which of the following actions demonstrates the correct technique?
A) Wipe the excess hand rub off with a paper towel after 10 seconds.
B) Rub hands together dynamically until the alcohol solution has completely dried.
C) Wash hands with soap and water immediately prior to using the hand rub.
D) Apply the hand rub exclusively to the palms of the hands.
VERIFIED UPDATED ANSWER: B) Rub hands together dynamically until the
alcohol solution has completely dried.
EXPLANATION: For alcohol-based hand rub to be effective, it must be rubbed
over all surfaces of the hands and fingers until completely dry, which typically
takes 20 to 30 seconds. Wiping the product off prevents it from killing
microorganisms. Washing hands simultaneously is unnecessary unless the
hands are visibly soiled with blood or bodily fluids.
Question 4
A nurse is caring for a client who is on strict contact precautions for a Clostridioides
difficile (C. diff) infection. Which of the following actions is mandatory for the nurse to
perform?
A) Wear an N95 respirator mask when entering the client's room.
B) Cleanse the hands with an alcohol-based foam rub upon exiting the room.
C) Use soap and water exclusively for hand hygiene after client care.
D) Keep the client's room door closed at all times to prevent airborne spread.
VERIFIED UPDATED ANSWER: C) Use soap and water exclusively for hand
hygiene after client care.
EXPLANATION: Clostridioides difficile forms highly resistant spores that are
physically unaffected by alcohol-based hand rubs. The mechanical friction of
washing hands with soap and water is required to rinse spores off the skin
surface. N95 respirators and closed doors are used for airborne precautions, not
contact precautions.
, Question 5
A nurse is preparing to insert an indwelling urinary catheter for a female client. Which of
the following actions should the nurse take to maintain sterile technique?
A) Cleanse the labia majora from the rectum upward toward the clitoris.
B) Keep the sterile field at the nurse's hip level during the procedure.
C) Open the outer wrapping of the catheter kit away from the nurse's body first.
D) Put on sterile gloves before opening the outer wrapper of the catheter kit.
VERIFIED UPDATED ANSWER: C) Open the outer wrapping of the catheter kit
away from the nurse's body first.
EXPLANATION: Opening a sterile kit's first flap away from the nurse's body
prevents contamination from reaching across the field later. The workspace must
remain at or above waist level to prevent accidental contamination. Cleaning the
perineal area must always progress from the area of least contamination to most
contamination (clitoris toward rectum). The outer wrapper is non-sterile and must
be opened before donning sterile gloves.
Question 6
A nurse is reviewing a provider's prescriptions for a client who has a severe sodium
deficiency. Which of the following IV fluids should the nurse anticipate administering?
A) 0.45% Sodium Chloride (Half-Normal Saline)
B) 3% Sodium Chloride (Hypertonic Saline)
C) 5% Dextrose in Water (D5W)
D) 0.9% Sodium Chloride (Normal Saline)
VERIFIED UPDATED ANSWER: B) 3% Sodium Chloride (Hypertonic Saline)
EXPLANATION: Severe hyponatremia requires a hypertonic fluid, such as 3%
Sodium Chloride, to pull excess water out of cells and restore extracellular
sodium balance. Fluid choices like 0.45% NaCl are hypotonic and would worsen
hyponatremia. Fluid choices like 0.9% NaCl are isotonic and appropriate for mild
depletion, but insufficient for severe, symptomatic deficits.
Question 7
A nurse is preparing to transfer a client who has right-sided weakness from the bed to a
wheelchair. Which of the following actions should the nurse perform?
A) Place the wheelchair on the client's weak right side.
, B) Position the wheelchair on the client's strong left side.
C) Pivot the client toward their weaker side during the transfer.
D) Ask the client to place their arms around the nurse's neck for stability.
VERIFIED UPDATED ANSWER: B) Position the wheelchair on the client's strong
left side.
EXPLANATION: Positioning the chair on the client's unaffected (strong) side
allows them to bear weight on their functional limb and safely pivot into the chair.
Pivoting toward the weak side increases fall risks. Asking a client to pull on the
nurse's neck violates safe patient handling mechanics and can cause injury to
both parties.
Question 8
A nurse notes that a client's oxygen saturation has dropped from 95% to 88% on room
air. Which of the following actions should the nurse take first?
A) Notify the attending provider or rapid response team.
B) Prepare the client for an urgent chest X-ray.
C) Elevate the head of the client's bed to a high-Fowler's position.
D) Administer oxygen at 4 L/min via a nasal cannula.
VERIFIED UPDATED ANSWER: C) Elevate the head of the client's bed to a high-
Fowler's position.
EXPLANATION: Elevating the head of the bed utilizes gravity to expand the lungs
fully, maximizing chest expansion and gas exchange immediately. This least-
invasive nursing intervention must be done before applying equipment or leaving
the bedside to alert a doctor.
Question 9
A nurse is preparing to document an entry in a client's electronic medical record. Which
of the following entries demonstrates the correct standard of nursing documentation?
A) "The client seems to be having a good day today."
B) "Administered pain medication because the client was being dramatic."
C) "Client states, 'My stomach feels like it is burning,' rating pain at a 6/10."
D) "Wound looks ugly and appears to be heavily infected."
VERIFIED UPDATED ANSWER: C) Client states, 'My stomach feels like it is
burning,' rating pain at a 6/10.
EXPLANATION: Professional nursing documentation must be objective, factual,
precise, and devoid of personal judgment or vague language. Quoting the client
Bank |Verified Questions & Explanations | Updated
2026/2027 Review Chamberlain University
This premium study guide is meticulously designed to mirror the actual ATI RN Fundamentals Content
Mastery Series proctored exam blueprint. Each multiple-choice question features an instant, high-
impact distractor analysis alongside a verified updated answer to maximize your clinical reasoning skills.
Ideal for nursing students seeking a comprehensive, rapid-fire breakdown of safety, infection control,
pharmacology, and core physiological nursing interventions
Question 1
A nurse is caring for a client who is post-operative and reporting a pain level of 8 on a
scale of 0 to 10. Which of the following actions should the nurse take first?
A) Document the client's report of pain in the electronic medical record.
B) Administer the prescribed oral analgesic medication.
C) Inspect the surgical incision site for complications.
D) Review the client's medical history for a history of substance abuse.
VERIFIED UPDATED ANSWER: C) Inspect the surgical incision site for
complications.
EXPLANATION: Using the nursing process, the nurse must always assess the
client before implementing an intervention. Inspecting the surgical site allows the
nurse to rule out acute complications (e.g., hemorrhage, dehiscence) causing
sudden severe pain before administering medication. Documenting or looking up
past history are secondary actions that delay immediate safety verification.
Question 2
A nurse is preparing to administer an intramuscular (IM) injection to an obese adult
client. Which of the following needles should the nurse select for the injection?
A) 25-gauge, 5/8-inch needle
B) 21-gauge, 1.5-inch needle
C) 18-gauge, 1-inch needle
D) 22-gauge, 1/2-inch needle
, VERIFIED UPDATED ANSWER: B) 21-gauge, 1.5-inch needle
EXPLANATION: Intramuscular injections in an average or obese adult require a
needle length of 1.5 inches to effectively bypass adipose tissue and reach the
deep muscle mass. A 5/8-inch or 1/2-inch needle is too short and will deliver
medication into subcutaneous tissue. An 18-gauge needle has a lumen diameter
that is unnecessarily large and painful for a standard IM injection.
Question 3
A nurse is performing a standard hand hygiene procedure using an alcohol-based hand
rub. Which of the following actions demonstrates the correct technique?
A) Wipe the excess hand rub off with a paper towel after 10 seconds.
B) Rub hands together dynamically until the alcohol solution has completely dried.
C) Wash hands with soap and water immediately prior to using the hand rub.
D) Apply the hand rub exclusively to the palms of the hands.
VERIFIED UPDATED ANSWER: B) Rub hands together dynamically until the
alcohol solution has completely dried.
EXPLANATION: For alcohol-based hand rub to be effective, it must be rubbed
over all surfaces of the hands and fingers until completely dry, which typically
takes 20 to 30 seconds. Wiping the product off prevents it from killing
microorganisms. Washing hands simultaneously is unnecessary unless the
hands are visibly soiled with blood or bodily fluids.
Question 4
A nurse is caring for a client who is on strict contact precautions for a Clostridioides
difficile (C. diff) infection. Which of the following actions is mandatory for the nurse to
perform?
A) Wear an N95 respirator mask when entering the client's room.
B) Cleanse the hands with an alcohol-based foam rub upon exiting the room.
C) Use soap and water exclusively for hand hygiene after client care.
D) Keep the client's room door closed at all times to prevent airborne spread.
VERIFIED UPDATED ANSWER: C) Use soap and water exclusively for hand
hygiene after client care.
EXPLANATION: Clostridioides difficile forms highly resistant spores that are
physically unaffected by alcohol-based hand rubs. The mechanical friction of
washing hands with soap and water is required to rinse spores off the skin
surface. N95 respirators and closed doors are used for airborne precautions, not
contact precautions.
, Question 5
A nurse is preparing to insert an indwelling urinary catheter for a female client. Which of
the following actions should the nurse take to maintain sterile technique?
A) Cleanse the labia majora from the rectum upward toward the clitoris.
B) Keep the sterile field at the nurse's hip level during the procedure.
C) Open the outer wrapping of the catheter kit away from the nurse's body first.
D) Put on sterile gloves before opening the outer wrapper of the catheter kit.
VERIFIED UPDATED ANSWER: C) Open the outer wrapping of the catheter kit
away from the nurse's body first.
EXPLANATION: Opening a sterile kit's first flap away from the nurse's body
prevents contamination from reaching across the field later. The workspace must
remain at or above waist level to prevent accidental contamination. Cleaning the
perineal area must always progress from the area of least contamination to most
contamination (clitoris toward rectum). The outer wrapper is non-sterile and must
be opened before donning sterile gloves.
Question 6
A nurse is reviewing a provider's prescriptions for a client who has a severe sodium
deficiency. Which of the following IV fluids should the nurse anticipate administering?
A) 0.45% Sodium Chloride (Half-Normal Saline)
B) 3% Sodium Chloride (Hypertonic Saline)
C) 5% Dextrose in Water (D5W)
D) 0.9% Sodium Chloride (Normal Saline)
VERIFIED UPDATED ANSWER: B) 3% Sodium Chloride (Hypertonic Saline)
EXPLANATION: Severe hyponatremia requires a hypertonic fluid, such as 3%
Sodium Chloride, to pull excess water out of cells and restore extracellular
sodium balance. Fluid choices like 0.45% NaCl are hypotonic and would worsen
hyponatremia. Fluid choices like 0.9% NaCl are isotonic and appropriate for mild
depletion, but insufficient for severe, symptomatic deficits.
Question 7
A nurse is preparing to transfer a client who has right-sided weakness from the bed to a
wheelchair. Which of the following actions should the nurse perform?
A) Place the wheelchair on the client's weak right side.
, B) Position the wheelchair on the client's strong left side.
C) Pivot the client toward their weaker side during the transfer.
D) Ask the client to place their arms around the nurse's neck for stability.
VERIFIED UPDATED ANSWER: B) Position the wheelchair on the client's strong
left side.
EXPLANATION: Positioning the chair on the client's unaffected (strong) side
allows them to bear weight on their functional limb and safely pivot into the chair.
Pivoting toward the weak side increases fall risks. Asking a client to pull on the
nurse's neck violates safe patient handling mechanics and can cause injury to
both parties.
Question 8
A nurse notes that a client's oxygen saturation has dropped from 95% to 88% on room
air. Which of the following actions should the nurse take first?
A) Notify the attending provider or rapid response team.
B) Prepare the client for an urgent chest X-ray.
C) Elevate the head of the client's bed to a high-Fowler's position.
D) Administer oxygen at 4 L/min via a nasal cannula.
VERIFIED UPDATED ANSWER: C) Elevate the head of the client's bed to a high-
Fowler's position.
EXPLANATION: Elevating the head of the bed utilizes gravity to expand the lungs
fully, maximizing chest expansion and gas exchange immediately. This least-
invasive nursing intervention must be done before applying equipment or leaving
the bedside to alert a doctor.
Question 9
A nurse is preparing to document an entry in a client's electronic medical record. Which
of the following entries demonstrates the correct standard of nursing documentation?
A) "The client seems to be having a good day today."
B) "Administered pain medication because the client was being dramatic."
C) "Client states, 'My stomach feels like it is burning,' rating pain at a 6/10."
D) "Wound looks ugly and appears to be heavily infected."
VERIFIED UPDATED ANSWER: C) Client states, 'My stomach feels like it is
burning,' rating pain at a 6/10.
EXPLANATION: Professional nursing documentation must be objective, factual,
precise, and devoid of personal judgment or vague language. Quoting the client
