HESI RN
HESI RN Medical Surgical Practice Exam
1. The nurse is caring for a patient who is ordered to receive PO trimethoprim-sulfamethoxazole (TMP-SMX) 160/800 QID to treat a urinary tract infection caused by E. coli. The nurse will contact the provider to clarify the correct
- A. dose.
- B. drug.
- C. frequency.
- D. route.
Correct answer: C
Rationale: The correct answer is 'frequency.' Trimethoprim-sulfamethoxazole (TMP-SMX) is typically prescribed to be taken twice daily, not four times a day (QID). The dose, drug, and route are already specified in the order, so the nurse should contact the provider to clarify the frequency of administration to ensure optimal treatment for the urinary tract infection caused by E. coli. Choosing 'dose' is incorrect because the dose of 160/800 is already provided in the order. 'Drug' is incorrect because the medication Trimethoprim-sulfamethoxazole (TMP-SMX) is explicitly stated in the prescription. 'Route' is incorrect as PO (by mouth) is also clearly indicated in the prescription.
2. A client in the intensive care unit is started on continuous venovenous hemofiltration (CVVH). Which finding should prompt immediate action by the nurse?
- A. Blood pressure of 76/58 mm Hg
- B. Sodium level of 138 mEq/L
- C. Potassium level of 5.5 mEq/L
- D. Pulse rate of 90 beats/min
Correct answer: A
Rationale: The correct answer is A: Blood pressure of 76/58 mm Hg. In a client undergoing continuous venovenous hemofiltration (CVVH), hypotension can be a significant concern if replacement fluid does not adequately maintain blood pressure. The nurse should take immediate action to address hypotension to prevent further complications. The sodium level of 138 mEq/L is within normal range, and a potassium level of 5.5 mEq/L, while slightly elevated, may be expected in a patient with acute kidney injury. A pulse rate of 90 beats/min falls within the normal range and does not typically require immediate intervention in this context.
3. A scrub nurse preparing for the first surgery of the day asks if a 3-minute surgical hand scrub is adequate. What should the circulating nurse advise?
- A. Proceed with surgery preparation
- B. Extend scrub time to 5 minutes
- C. Use an alcohol-based hand sanitizer
- D. Scrub time depends on the type of surgery
Correct answer: B
Rationale: The circulating nurse should advise the scrub nurse to extend the hand scrub to 5 minutes for thorough preparation, especially for the first surgery of the day. Choice A is incorrect as it does not address the need for a longer scrub time. Choice C is incorrect as alcohol-based hand sanitizer is not a substitute for a thorough surgical hand scrub. Choice D is incorrect as while scrub time may vary based on the surgery, for the first surgery of the day, a longer scrub time is recommended as a standard practice.
4. A client at 28 weeks gestation calls the antepartum clinic and reports experiencing a small amount of bright red vaginal bleeding without uterine contractions or abdominal pain. What instruction should the LPN/LVN provide?
- A. Come to the clinic today for an ultrasound.
- B. Go immediately to the emergency room.
- C. Lie on your left side for about one hour and see if the bleeding stops.
- D. Bring a urine specimen to the lab tomorrow to determine if you have a urinary tract infection.
Correct answer: A
Rationale: Bright red vaginal bleeding without pain could indicate placental issues such as previa. An ultrasound is necessary to evaluate the cause. It is important to rule out potential serious conditions like placental previa, which can lead to further complications for both the mother and the fetus. Therefore, prompt evaluation through an ultrasound at the clinic is essential for appropriate management and ensuring the well-being of the client and her baby.
5. A client presents to the labor and delivery unit with a report of leaking fluid that is greenish-brown vaginal discharge. Which action should the nurse take first?
- A. Notify the healthcare provider immediately
- B. Begin continuous fetal monitoring
- C. Check the amniotic fluid pH
- D. Assess maternal vital signs
Correct answer: B
Rationale: Greenish-brown discharge likely indicates meconium in the amniotic fluid, which poses a risk to the fetus. Continuous fetal monitoring should be initiated immediately to assess for signs of fetal distress. Meconium-stained amniotic fluid can lead to meconium aspiration syndrome in the newborn, so timely monitoring is crucial. Checking the amniotic fluid pH can help confirm the presence of meconium but is not the priority over fetal monitoring. Assessing maternal vital signs is important but secondary to monitoring the fetal well-being in this urgent situation. Notifying the healthcare provider can follow once the immediate fetal assessment is underway.