HESI RN
Evolve HESI Medical Surgical Practice Exam
1. A client reports for a scheduled electroencephalogram (EEG). Which statement by the client indicates a need for additional preparation for the test?
- A. I didn’t shampoo my hair.
- B. I ate breakfast this morning.
- C. I didn’t take my anticonvulsant today.
- D. It was hard not to drink coffee this morning, but I knew that I couldn’t, so I didn’t.
Correct answer: A
Rationale: The correct answer is A. For an EEG, it is essential that the client's hair is clean, without any products like hairspray or gel, to ensure good electrode contact with the scalp. Choice B is not a concern as having breakfast is allowed before the test. Choice C, not taking an anticonvulsant, might be required for certain types of EEGs to capture accurate brain activity. Choice D, not drinking coffee, is not a specific requirement for an EEG preparation.
2. A nurse reviews a client’s urinalysis report. Which finding does the nurse recognize as abnormal?
- A. pH of 6.0
- B. An absence of protein
- C. The presence of ketones
- D. Specific gravity of 1.018
Correct answer: C
Rationale: The correct answer is C. The presence of ketones in the urine is abnormal. Ketones in the urine may indicate a state of ketosis, which is commonly seen in uncontrolled diabetes, fasting, or a low-carbohydrate diet. A normal pH range of urine is 4.5 to 7.8, making a pH of 6.0 within the normal range. An absence of protein is a normal finding in urine, as proteinuria (presence of protein) is abnormal. A specific gravity of 1.018 falls within the normal range of 1.016 to 1.022. Therefore, the presence of ketones is the abnormal finding in this scenario.
3. The nurse is teaching a nursing student about the minimal effective concentration (MEC) of antibiotics. Which statement by the nursing student indicates understanding of this concept?
- A. A serum drug level greater than the MEC ensures that the drug is bacteriostatic.
- B. A serum drug level greater than the MEC broadens the spectrum of the drug.
- C. A serum drug level greater than the MEC helps eradicate bacterial infections.
- D. A serum drug level greater than the MEC increases the therapeutic index.
Correct answer: C
Rationale: The MEC is the minimum amount of drug needed to halt the growth of a microorganism. A level greater than the MEC helps eradicate infections. Drugs at or above the MEC are usually bactericidal, not bacteriostatic. Therefore, choice A is incorrect. Broadening the spectrum of a drug refers to its range of activity against different microorganisms, which is not directly related to MEC. Thus, choice B is incorrect. Increasing the therapeutic index involves maximizing the effectiveness of a drug while minimizing its toxicity, which is not specifically related to MEC. Therefore, choice D is also incorrect.
4. A woman has been scheduled for a routine mammogram. What should the nurse tell the client?
- A. That mammography takes about 1 hour
- B. Not to eat or drink on the morning of the test
- C. That there is no discomfort associated with the procedure
- D. That deodorants, powders, or creams used in the axillary or breast area must be washed off before the test
Correct answer: D
Rationale: The correct answer is D. The nurse should instruct the client to avoid using deodorants, powders, or creams on the day of the mammogram. These products used in the axillary or breast area can interfere with the mammogram results and must be washed off before the test. Choices A, B, and C are incorrect because mammography typically takes less than 30 minutes, there is no need for fasting before the test, and some discomfort may be experienced during the procedure.
5. A client with type 1 diabetes mellitus has a blood glucose level of 620 mg/dL. After the nurse calls the physician to report the finding and monitors the client closely for:
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: A
Rationale: In the scenario described, a client with a blood glucose level of 620 mg/dL and type 1 diabetes mellitus is at risk of developing metabolic acidosis. In type 1 diabetes, the lack of sufficient circulating insulin leads to an increase in blood glucose levels. As the body cells utilize all available glucose, the breakdown of fats for energy results in the production of ketones, leading to metabolic acidosis. Metabolic alkalosis, respiratory acidosis, and respiratory alkalosis are not typically associated with uncontrolled type 1 diabetes. Metabolic alkalosis is more commonly linked to conditions such as vomiting or excessive diuretic use, while respiratory acidosis and respiratory alkalosis are related to respiratory system imbalances in carbon dioxide levels.
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