HESI RN
HESI Medical Surgical Practice Quiz
1. A patient’s serum osmolality is 305 mOsm/kg. Which term describes this patient’s body fluid osmolality?
- A. Iso-osmolar
- B. Hypo-osmolar
- C. Hyperosmolar
- D. Isotonic
Correct answer: C
Rationale: The correct term to describe a patient with a serum osmolality of 305 mOsm/kg is 'hyperosmolar.' Normal osmolality ranges from 280 to 300 mOsm/kg. A patient with an osmolality above this range is considered hyperosmolar. Choice A ('Iso-osmolar') implies an equal osmolality, which is not the case in this scenario. Choice B ('Hypo-osmolar') suggests a lower osmolality, which is incorrect based on the provided serum osmolality value. Choice D ('Isotonic') refers to a solution having the same osmolality as another solution, not describing the specific scenario of this patient being above the normal range.
2. The nurse is preparing to administer an antibiotic to a patient who has been receiving the antibiotic for 2 days after a culture was obtained. The nurse notes increased erythema and swelling, and the patient has a persistent high fever of 39°C. What is the nurse’s next action?
- A. Administer the antibiotic as ordered.
- B. Contact the provider to request another culture.
- C. Discuss the need to add a second antibiotic with the provider.
- D. Review the sensitivity results from the patient’s culture.
Correct answer: D
Rationale: In this scenario, the nurse is observing signs of a possible lack of response to the current antibiotic therapy, such as increased erythema, swelling, and persistent high fever. The next appropriate action for the nurse is to review the sensitivity results from the patient’s culture. This step is crucial to determine if the current antibiotic is effective against the causative organism. If the sensitivity results indicate resistance to the current antibiotic, the antibiotic should be discontinued, and the provider should be notified for a change in therapy. Contacting the provider to request another culture is not the immediate priority, as the existing culture results need to be reviewed first. Adding a second antibiotic should only be considered after confirming the sensitivity results, as unnecessary antibiotic use can lead to antimicrobial resistance.
3. The patient is beginning furosemide and has started a 2-week course of a steroid medication. What should the nurse recommend?
- A. Avoid consuming licorice to prevent excess potassium loss.
- B. Report a urine output less than 600 mL/24 hours.
- C. Obtain an order for a potassium supplement.
- D. Take the furosemide in the morning.
Correct answer: C
Rationale: When a patient is taking furosemide and a steroid medication, there is an increased risk of potassium loss due to the interaction between the two drugs. Consuming licorice should be avoided as it can worsen potassium loss. Reporting a urine output less than 600 mL/24 hours is not directly related to the drug interaction and may not be necessary. Taking furosemide at bedtime is not the primary concern when a patient is concurrently on a steroid medication and furosemide. Therefore, obtaining an order for a potassium supplement is the most appropriate recommendation to counteract the potential potassium loss.
4. What is the correct procedure for performing an ophthalmoscopic examination on a client's right retina?
- A. Instruct the client to focus on a distant object behind the examiner and not move their eyes during the exam.
- B. Set the ophthalmoscope on the plus 2 to 3 lens and hold it in front of the examiner's right eye.
- C. From a distance of 12 to 15 inches and slightly to the side, shine the light into the client's pupil.
- D. For optimal visualization, keep the ophthalmoscope at least 3 inches from the client's eye.
Correct answer: C
Rationale: During an ophthalmoscopic examination, the client should focus on a distant object behind the examiner to dilate the pupil, and the examiner should stand at a distance of 12-15 inches away and slightly to the side. This angle allows for better visualization of the retina. Holding the ophthalmoscope firmly against the examiner's face and shining the light into the client's pupil helps examine the retina effectively. Choice A is incorrect because the client should look at a distant object, not the examiner's nose. Choice B is incorrect as the ophthalmoscope should be directed towards the client's eye, not the examiner's eye. Choice D is incorrect because keeping the ophthalmoscope at least 3 inches away may not provide an optimal view of the retina.
5. The healthcare provider notes a blood pressure of 160/90 mm Hg in a patient taking a thiazide diuretic. The patient reports taking an herbal medication that a friend recommended. Which herbal product is likely, given this patient’s blood pressure?
- A. Ginkgo
- B. Hawthorn
- C. Licorice
- D. St. John’s wort
Correct answer: A
Rationale: The correct answer is A: Ginkgo. Increased blood pressure can result when ginkgo is used in combination with a thiazide diuretic. Option B (Hawthorn) is incorrect because hawthorn is more commonly associated with lowering blood pressure. Option C (Licorice) is incorrect because licorice can lead to sodium and water retention, potentially exacerbating hypertension. Option D (St. John’s wort) is incorrect as it is not typically associated with significant blood pressure effects.
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