HESI RN
HESI Fundamentals Practice Exam
1. By rolling contaminated gloves inside-out, the healthcare professional is affecting which step in the chain of infection?
- A. Mode of transmission
- B. Portal of entry
- C. Reservoir
- D. Portal of exit
Correct answer: A
Rationale: When contaminated gloves are rolled inside-out, they are serving as a mode of transmission by carrying pathogens from the reservoir's portal of exit to a new portal of entry. This action increases the risk of transmitting infections from one person to another, emphasizing the importance of proper glove removal techniques to prevent the spread of pathogens. Choices B, C, and D are incorrect in this context. Portal of entry refers to the route through which a pathogen enters a susceptible host, reservoir is the habitat where the pathogen lives, grows, and multiplies, and portal of exit is the path through which a pathogen leaves its host.
2. A client is admitted with a diagnosis of diabetic ketoacidosis (DKA). Which intervention should the nurse implement first?
- A. Administer regular insulin IV.
- B. Administer IV fluids at 250 ml/hr.
- C. Administer sodium bicarbonate IV push.
- D. Administer furosemide (Lasix) IV push.
Correct answer: A
Rationale: Administering regular insulin IV (A) is the initial intervention for a client with diabetic ketoacidosis (DKA) to rapidly reduce blood glucose levels. This is vital in reversing the ketosis and acidosis seen in DKA. Administering IV fluids (B) helps to correct dehydration and electrolyte imbalances. Administering sodium bicarbonate (C) and furosemide (D) may be necessary depending on the client's condition, but insulin administration takes precedence in the management of DKA.
3. The healthcare professional is monitoring a client receiving IV potassium chloride. Which assessment finding should prompt the healthcare professional to immediately stop the infusion?
- A. The client reports pain at the IV site
- B. The client’s heart rate is irregular
- C. The client has swelling at the IV site
- D. The client’s blood pressure is elevated
Correct answer: B
Rationale: An irregular heart rate is a critical sign of hyperkalemia, a serious condition that can lead to life-threatening cardiac arrhythmias. Stopping the infusion promptly is crucial to prevent further complications. The healthcare professional should inform the healthcare provider immediately for further evaluation and management. Choice A is incorrect because pain at the IV site is common and may not necessitate stopping the infusion. Choice C is incorrect as swelling at the IV site may indicate a local reaction but is not a reason to stop the infusion. Choice D is incorrect as an elevated blood pressure alone is not a direct indication to stop the infusion of IV potassium chloride.
4. During a client assessment, the healthcare provider is evaluating cranial nerve function. Which assessment finding suggests that cranial nerve II is intact?
- A. The client can hear a whisper from 1 to 2 feet away.
- B. The client can identify an object by touch.
- C. The client can shrug the shoulders against resistance.
- D. The client can read a Snellen chart from 20 feet away.
Correct answer: D
Rationale: The ability to read a Snellen chart from 20 feet away indicates intact cranial nerve II (optic nerve), responsible for vision. Hearing a whisper (A) is associated with cranial nerve VIII (vestibulocochlear nerve), identifying an object by touch (B) is related to cranial nerves V (trigeminal nerve) and VII (facial nerve), and shoulder shrugging against resistance (C) is a test for cranial nerve XI (accessory nerve). Thus, the correct answer is D as it specifically tests the function of cranial nerve II.
5. A client is admitted with a diagnosis of left-sided heart failure. Which assessment finding is most consistent with this diagnosis?
- A. Dependent edema.
- B. Ascites.
- C. Nocturia.
- D. Orthopnea.
Correct answer: D
Rationale: Orthopnea (D) is most consistent with left-sided heart failure. It is characterized by difficulty breathing when lying flat and is relieved by sitting up or standing. Dependent edema (A), ascites (B), and nocturia (C) are more commonly associated with right-sided heart failure. Dependent edema refers to swelling due to fluid accumulation, ascites is the accumulation of fluid in the peritoneal cavity, and nocturia is the excessive need to urinate during the night, all of which are more indicative of right-sided heart failure.
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