HESI RN
HESI Medical Surgical Practice Exam
1. What is the most common cause of peptic ulcers?
- A. Helicobacter pylori infection
 - B. NSAID use
 - C. Excessive alcohol consumption
 - D. Stress
 
Correct answer: A
Rationale: Helicobacter pylori infection is the most common cause of peptic ulcers. This bacterium can weaken the protective mucous coating of the stomach and duodenum, allowing acid to get through to the sensitive lining beneath. NSAID use (Choice B) can also cause peptic ulcers by disrupting the stomach's mucosal barrier. Excessive alcohol consumption (Choice C) and stress (Choice D) can exacerbate and contribute to ulcer formation but are not the primary cause.
2. An adult client is admitted with flank pain and is diagnosed with acute pyelonephritis. What is the priority nursing action?
- A. Monitor hemoglobin and hematocrit
 - B. Encourage turning and deep breathing
 - C. Administer IV antibiotics as prescribed
 - D. Auscultate for presence of bowel sounds
 
Correct answer: C
Rationale: The priority nursing action for a client diagnosed with acute pyelonephritis is to administer IV antibiotics as prescribed. Acute pyelonephritis is a serious kidney infection that requires prompt antibiotic therapy to prevent systemic complications and worsening of the infection. While monitoring hemoglobin and hematocrit (Choice A) is important, it is not the priority in the acute phase of infection. Encouraging turning and deep breathing (Choice B) and auscultating for bowel sounds (Choice D) are relevant aspects of care but do not take precedence over initiating antibiotic treatment to address the infection promptly.
3. A client is returning home after arthroscopy of the shoulder. The nurse should tell the client:
- A. To resume full activity the next day
 - B. Not to eat or drink anything until the next morning
 - C. To keep the shoulder completely immobilized for the rest of the day
 - D. To report to the physician the development of fever or redness and heat at the site
 
Correct answer: D
Rationale: After arthroscopy, it is important for the client to report any signs of infection, such as the development of fever or redness and heat at the site, to the physician promptly. Options A, B, and C are incorrect. The client should not resume full activity the next day as rest and limited movement are usually recommended post-arthroscopy. It is not necessary to withhold food or fluids until the next morning; the client may resume the usual diet immediately unless otherwise instructed. While immobilization may be recommended for a period, keeping the shoulder completely immobilized for the rest of the day is not typically necessary post-arthroscopy.
4. What action should the nurse take for a female patient experiencing vaginal itching and discharge while taking trimethoprim-sulfamethoxazole (TMP-SMZ) (Bactrim, Septra) for a urinary tract infection?
- A. Ask the patient if she might be pregnant.
 - B. Reassure the patient that this is a normal side effect.
 - C. Report a possible superinfection to the provider.
 - D. Suspect that the patient is having a hematologic reaction.
 
Correct answer: C
Rationale: The correct action for the nurse to take in this situation is to report a possible superinfection to the healthcare provider. Vaginal itching and discharge can indicate a superinfection, which is a secondary infection that can occur while taking antibiotics. It is essential to notify the provider so that appropriate treatment can be initiated. Asking about pregnancy is not relevant in this context as vaginal itching and discharge are not typical signs of pregnancy. Simply reassuring the patient that these symptoms are normal side effects is inadequate as they may indicate a more serious issue like a superinfection. Suspecting a hematologic reaction is not warranted based on the symptoms described.
5. A healthcare professional reviews the blood gas results of a client in respiratory distress. The pH is 7.32, and the PCO2 is 50 mm Hg. Which of the following acid-base imbalances does the professional recognize in these findings?
- A. Metabolic acidosis
 - B. Metabolic alkalosis
 - C. Respiratory acidosis
 - D. Respiratory alkalosis
 
Correct answer: C
Rationale: In respiratory acidosis, the pH is low (<7.35) and the PCO2 is increased (>45 mm Hg). These findings indicate that the client is experiencing respiratory acidosis, a condition where there is an excess of carbon dioxide in the blood due to inadequate ventilation, commonly seen in respiratory distress. Metabolic acidosis (Choice A) is characterized by a low pH and decreased bicarbonate levels, which is not the case in this scenario. Metabolic alkalosis (Choice B) is associated with a high pH and increased bicarbonate levels. Respiratory alkalosis (Choice D) is marked by a high pH and decreased PCO2, opposite to the values presented in the blood gas results of this client.
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