CMSRN EXAM BANK 2025/2026 | ACCURATE REAL EXAM QUESTIONS AND
ANSWERS WITH DETAILED RATIONALES | CURRENTLY TESTING AND FREQUENTLY
TESTED VERSIONS | EXPERT VERIFIED FOR GUARANTEED PASS | LATEST UPDATE
Question 1
A patient presents with significant Ascites. Which of the following laboratory or clinical findings
is most directly associated with the development of this condition?
A) High serum epinephrine levels
B) Low plasma albumin levels
C) Elevated plasma oncotic pressure
D) Chronic hypotension
E) Increased vitamin K production
Correct Answer: B) Low plasma albumin levels
Rationale: Albumin is the primary protein responsible for maintaining colloidal osmotic
(oncotic) pressure. A lack of pressure from plasma proteins allows fluid to leak from the
intravascular space into the interstitial or peritoneal areas (ascites). This is commonly seen
in patients with liver cirrhosis.
Question 2
In the context of infection control, what specific characteristic distinguishes Community-
Acquired MRSA (CA-MRSA) from other strains according to hospital admission protocols?
A) It is typically identified within 48 hours of hospital admission
B) It is transmitted exclusively through sexual contact
C) It is primarily spread via blood-to-blood transfusions
D) It only affects the respiratory system
E) It is resistant to all known antiseptic handwashes
Correct Answer: A) It is typically identified within 48 hours of hospital admission
Rationale: Community-acquired MRSA is generally defined as an infection identified in a
patient who has not been hospitalized or had a medical procedure within the past year. In a
clinical setting, if a patient presents with MRSA within the first 48 hours of admission, it is
categorized as community-acquired rather than hospital-acquired.
Question 3
A patient is diagnosed with foreign body aspiration. This clinical emergency entails an object
lodged in which part of the respiratory tract?
A) The Larynx
B) The Trachea
C) Both the Larynx and the Trachea
D) The Pleural Cavity
E) The Alveolar Sacs
, 2
Correct Answer: C) Both A and B
Rationale: Foreign body aspiration involves an object becoming stuck in the larynx or
trachea, effectively blocking the airway and preventing oxygenation. This requires
immediate intervention to prevent respiratory arrest.
Question 4
A patient requires supplemental oxygen for a pulmonary treatment. Which of the following is
correct regarding the administration of high-flow or long-term oxygen?
A) The flow rate must be inconsistent to stimulate the lungs
B) The pressure should be kept at maximum levels at all times
C) The pressure should be kept as low as possible to prevent lung collapse
D) The oxygen must be fully humidified
E) The oxygen must be cooled to room temperature before inhalation
Correct Answer: D) The oxygen must be fully humidified
Rationale: Oxygen is a naturally drying gas. Humidification is necessary to prevent the
drying of mucous membranes, which allows the oxygen to circulate effectively throughout
the body and maintains the integrity of the respiratory tract.
Question 5
Which diagnostic imaging scan is most useful and commonly utilized to help identify or rule out
a suspected case of appendicitis?
A) A focused Ultrasound
B) A CT Scan
C) An MRI
D) All of the Above
E) A simple Chest X-ray
Correct Answer: A) An Ultrasound
Rationale: While CT scans are highly accurate, an ultrasound is often used as a primary
diagnostic tool to identify inflammation of the appendix, particularly in children or thin
adults, because it is non-invasive and avoids radiation.
Question 6
Which of the following statements is true regarding the diagnosis and management of Peptic
Ulcer Disease (PUD)?
A) Stomach pain typically begins within 30 minutes after eating
B) Malignant tumors are the primary cause of all peptic ulcers
C) An endoscopy is the gold standard diagnostic tool needed
D) NSAID use is irrelevant to the development of PUD
E) Peptic ulcers only occur in the lower descending colon
Correct Answer: C) An endoscopy is needed
Rationale: An endoscopy (EGD) is required to visualize the ulcer directly and perform
, 3
biopsies if necessary. Clinically, pain from a gastric ulcer may start sooner, but pain from a
duodenal ulcer often takes a few hours to develop after a meal.
Question 7
A patient is diagnosed with Sickle Cell Disease. Which of the following physiological changes
should the nurse expect to see in this patient's blood profile?
A) The person will have significantly less free hemoglobin
B) Nitric oxide totals in the blood will drop
C) Arterial pressure will remain permanently low
D) Sildenafil use is contraindicated for all sickle cell patients
E) Blood cells will become larger and more spherical
Correct Answer: B) Nitric oxide totals will drop
Rationale: In Sickle Cell Disease, hemolysis (the breakdown of red blood cells) increases free
hemoglobin in the plasma. This free hemoglobin binds to and destroys nitric oxide, leading
to decreased nitric oxide levels and subsequent vascular complications.
Question 8
A patient with Hepatitis C has developed significant, irreversible liver damage. Which
intervention is the most definitive treatment for this end-stage condition?
A) Long-term antiviral medication therapy
B) Strict bedrest for six months
C) A Liver transplant
D) Monthly blood transfusions
E) High-dose Vitamin K injections
Correct Answer: C) A liver transplant
Rationale: When Hepatitis C causes cirrhosis or end-stage liver disease, the liver is unable
to perform vital functions. A transplant becomes the only definitive treatment once medical
management of complications fails.
Question 9
Which form of Hepatitis is primarily transmitted through the consumption of contaminated water
or food (fecal-oral route)?
A) Hepatitis A
B) Hepatitis B
C) Hepatitis C
D) Hepatitis D
E) Hepatitis E (Note: while E is also fecal-oral, the prompt specifically identifies A)
Correct Answer: A) A
Rationale: Hepatitis A is highly contagious and spreads through the ingestion of
contaminated food or water. Hepatitis B, C, and D are primarily blood-borne or sexually
transmitted.
, 4
Question 10
In managing a neurological patient, what is considered an ideal Intracranial Pressure (ICP)
rating?
A) 15 mmHg
B) 25 mmHg
C) 35 mmHg
D) 40 mmHg
E) 50 mmHg
Correct Answer: A) 15
Rationale: Normal ICP is generally considered to be between 5 and 15 mmHg. A rating of
less than 20 mmHg is the clinical goal, as levels above 20 are considered intracranial
hypertension.
Question 11
A patient presents with intense fatigue, lethargy, and a sudden change in mental status. Which
diagnostic test is the priority to rule out acute cerebral changes?
A) A CT Scan
B) A Pan culture (Blood, Urine, Sputum)
C) An airway exam
D) A comprehensive fluid test
E) An abdominal ultrasound
Correct Answer: A) A CT Scan
Rationale: A CT scan of the head is the priority to rule out hemorrhage, stroke, or other
acute cerebral changes that could cause lethargy and mental status shifts.
Question 12
A patient is scheduled for intracranial surgery. According to standard clinical guidelines for this
specific surgery, when should prophylactic antibiotics be prioritized?
A) Immediately before the first incision
B) During the intraoperative phase only
C) After the surgery, once the patient is stable
D) Prophylactic antibiotics should be avoided in all neuro cases
E) Only if the patient develops a fever over 101°F
Correct Answer: C) After the patient is stable
Rationale: While many surgeries require pre-operative antibiotics, in some neurosurgical
protocols, the emphasis is placed on post-operative stability. (Note: This follows the specific
revision point provided by the user).
Question 13
Following a splenectomy (removal of the spleen), which vaccine is the most critical for the nurse
to administer to prevent overwhelming sepsis?
ANSWERS WITH DETAILED RATIONALES | CURRENTLY TESTING AND FREQUENTLY
TESTED VERSIONS | EXPERT VERIFIED FOR GUARANTEED PASS | LATEST UPDATE
Question 1
A patient presents with significant Ascites. Which of the following laboratory or clinical findings
is most directly associated with the development of this condition?
A) High serum epinephrine levels
B) Low plasma albumin levels
C) Elevated plasma oncotic pressure
D) Chronic hypotension
E) Increased vitamin K production
Correct Answer: B) Low plasma albumin levels
Rationale: Albumin is the primary protein responsible for maintaining colloidal osmotic
(oncotic) pressure. A lack of pressure from plasma proteins allows fluid to leak from the
intravascular space into the interstitial or peritoneal areas (ascites). This is commonly seen
in patients with liver cirrhosis.
Question 2
In the context of infection control, what specific characteristic distinguishes Community-
Acquired MRSA (CA-MRSA) from other strains according to hospital admission protocols?
A) It is typically identified within 48 hours of hospital admission
B) It is transmitted exclusively through sexual contact
C) It is primarily spread via blood-to-blood transfusions
D) It only affects the respiratory system
E) It is resistant to all known antiseptic handwashes
Correct Answer: A) It is typically identified within 48 hours of hospital admission
Rationale: Community-acquired MRSA is generally defined as an infection identified in a
patient who has not been hospitalized or had a medical procedure within the past year. In a
clinical setting, if a patient presents with MRSA within the first 48 hours of admission, it is
categorized as community-acquired rather than hospital-acquired.
Question 3
A patient is diagnosed with foreign body aspiration. This clinical emergency entails an object
lodged in which part of the respiratory tract?
A) The Larynx
B) The Trachea
C) Both the Larynx and the Trachea
D) The Pleural Cavity
E) The Alveolar Sacs
, 2
Correct Answer: C) Both A and B
Rationale: Foreign body aspiration involves an object becoming stuck in the larynx or
trachea, effectively blocking the airway and preventing oxygenation. This requires
immediate intervention to prevent respiratory arrest.
Question 4
A patient requires supplemental oxygen for a pulmonary treatment. Which of the following is
correct regarding the administration of high-flow or long-term oxygen?
A) The flow rate must be inconsistent to stimulate the lungs
B) The pressure should be kept at maximum levels at all times
C) The pressure should be kept as low as possible to prevent lung collapse
D) The oxygen must be fully humidified
E) The oxygen must be cooled to room temperature before inhalation
Correct Answer: D) The oxygen must be fully humidified
Rationale: Oxygen is a naturally drying gas. Humidification is necessary to prevent the
drying of mucous membranes, which allows the oxygen to circulate effectively throughout
the body and maintains the integrity of the respiratory tract.
Question 5
Which diagnostic imaging scan is most useful and commonly utilized to help identify or rule out
a suspected case of appendicitis?
A) A focused Ultrasound
B) A CT Scan
C) An MRI
D) All of the Above
E) A simple Chest X-ray
Correct Answer: A) An Ultrasound
Rationale: While CT scans are highly accurate, an ultrasound is often used as a primary
diagnostic tool to identify inflammation of the appendix, particularly in children or thin
adults, because it is non-invasive and avoids radiation.
Question 6
Which of the following statements is true regarding the diagnosis and management of Peptic
Ulcer Disease (PUD)?
A) Stomach pain typically begins within 30 minutes after eating
B) Malignant tumors are the primary cause of all peptic ulcers
C) An endoscopy is the gold standard diagnostic tool needed
D) NSAID use is irrelevant to the development of PUD
E) Peptic ulcers only occur in the lower descending colon
Correct Answer: C) An endoscopy is needed
Rationale: An endoscopy (EGD) is required to visualize the ulcer directly and perform
, 3
biopsies if necessary. Clinically, pain from a gastric ulcer may start sooner, but pain from a
duodenal ulcer often takes a few hours to develop after a meal.
Question 7
A patient is diagnosed with Sickle Cell Disease. Which of the following physiological changes
should the nurse expect to see in this patient's blood profile?
A) The person will have significantly less free hemoglobin
B) Nitric oxide totals in the blood will drop
C) Arterial pressure will remain permanently low
D) Sildenafil use is contraindicated for all sickle cell patients
E) Blood cells will become larger and more spherical
Correct Answer: B) Nitric oxide totals will drop
Rationale: In Sickle Cell Disease, hemolysis (the breakdown of red blood cells) increases free
hemoglobin in the plasma. This free hemoglobin binds to and destroys nitric oxide, leading
to decreased nitric oxide levels and subsequent vascular complications.
Question 8
A patient with Hepatitis C has developed significant, irreversible liver damage. Which
intervention is the most definitive treatment for this end-stage condition?
A) Long-term antiviral medication therapy
B) Strict bedrest for six months
C) A Liver transplant
D) Monthly blood transfusions
E) High-dose Vitamin K injections
Correct Answer: C) A liver transplant
Rationale: When Hepatitis C causes cirrhosis or end-stage liver disease, the liver is unable
to perform vital functions. A transplant becomes the only definitive treatment once medical
management of complications fails.
Question 9
Which form of Hepatitis is primarily transmitted through the consumption of contaminated water
or food (fecal-oral route)?
A) Hepatitis A
B) Hepatitis B
C) Hepatitis C
D) Hepatitis D
E) Hepatitis E (Note: while E is also fecal-oral, the prompt specifically identifies A)
Correct Answer: A) A
Rationale: Hepatitis A is highly contagious and spreads through the ingestion of
contaminated food or water. Hepatitis B, C, and D are primarily blood-borne or sexually
transmitted.
, 4
Question 10
In managing a neurological patient, what is considered an ideal Intracranial Pressure (ICP)
rating?
A) 15 mmHg
B) 25 mmHg
C) 35 mmHg
D) 40 mmHg
E) 50 mmHg
Correct Answer: A) 15
Rationale: Normal ICP is generally considered to be between 5 and 15 mmHg. A rating of
less than 20 mmHg is the clinical goal, as levels above 20 are considered intracranial
hypertension.
Question 11
A patient presents with intense fatigue, lethargy, and a sudden change in mental status. Which
diagnostic test is the priority to rule out acute cerebral changes?
A) A CT Scan
B) A Pan culture (Blood, Urine, Sputum)
C) An airway exam
D) A comprehensive fluid test
E) An abdominal ultrasound
Correct Answer: A) A CT Scan
Rationale: A CT scan of the head is the priority to rule out hemorrhage, stroke, or other
acute cerebral changes that could cause lethargy and mental status shifts.
Question 12
A patient is scheduled for intracranial surgery. According to standard clinical guidelines for this
specific surgery, when should prophylactic antibiotics be prioritized?
A) Immediately before the first incision
B) During the intraoperative phase only
C) After the surgery, once the patient is stable
D) Prophylactic antibiotics should be avoided in all neuro cases
E) Only if the patient develops a fever over 101°F
Correct Answer: C) After the patient is stable
Rationale: While many surgeries require pre-operative antibiotics, in some neurosurgical
protocols, the emphasis is placed on post-operative stability. (Note: This follows the specific
revision point provided by the user).
Question 13
Following a splenectomy (removal of the spleen), which vaccine is the most critical for the nurse
to administer to prevent overwhelming sepsis?
