HESI RN
HESI Medical Surgical Practice Exam Quizlet
1. The client is being taught about the best time to plan sexual intercourse in order to conceive. Which information should be provided?
- A. Two weeks before menstruation.
- B. Vaginal mucous discharge is thick.
- C. Low basal temperature.
- D. First thing in the morning.
Correct answer: A
Rationale: The correct answer is A: 'Two weeks before menstruation.' Ovulation typically occurs 14 days before menstruation begins during a typical 28-day cycle. To increase the chances of conception, sexual intercourse should occur within 24 hours of ovulation. High estrogen levels during ovulation lead to changes in vaginal mucous discharge, making it more 'slippery' and stretchy. Basal temperature rises during ovulation. The timing of intercourse during the day is less significant than ensuring it happens around ovulation. The other options are incorrect because planning intercourse two weeks before menstruation is likely to miss the fertile window, thick vaginal mucous discharge indicates ovulation is approaching, and low basal temperature is not indicative of the fertile period.
2. A client with chronic obstructive pulmonary disease (COPD) presented with shortness of breath. Oxygen therapy was started at 2 liters/minute via nasal cannula. The arterial blood gases (ABGs) after treatment were pH 7.36, PaO2 62, PaCO2 59, and HCO3. Which statement describes the most likely cause of the simultaneous increase in both the PaO2 and the PaCO2?
- A. The hypercapnia resulted from the rapid respirations.
- B. The hypoxic drive was reduced by the oxygen therapy.
- C. The client had a pneumothorax which restricted ventilation.
- D. The client had a pulmonary embolism that reduced perfusion.
Correct answer: B
Rationale: In patients with COPD, oxygen therapy can reduce the hypoxic drive, which is the primary stimulus for breathing in these individuals. By providing supplemental oxygen, the hypoxic drive is diminished, resulting in decreased respiratory effort. As a consequence, the PaO2 may increase due to the supplemental oxygen, but this can lead to a decrease in the respiratory drive and subsequent retention of carbon dioxide, causing an increase in PaCO2 levels. Option A is incorrect because rapid respirations would typically lower PaCO2 levels. Option C is incorrect as a pneumothorax would lead to impaired gas exchange and decreased PaO2 levels without necessarily affecting PaCO2 levels. Option D is incorrect as a pulmonary embolism would typically result in ventilation-perfusion mismatch and decreased PaO2 levels without directly impacting PaCO2 levels.
3. A client with a history of peptic ulcer disease (PUD) is admitted after vomiting bright red blood several times over the course of 2 hours. In reviewing the laboratory results, the nurse finds the client's hemoglobin is 12 g/dL (120g/L) and the hematocrit is 35% (0.35). Which action should the nurse prepare to take?
- A. Continue monitoring for blood loss
- B. Administer 1,000 mL (1L) of normal saline
- C. Transfuse 2 units of platelets
- D. Prepare the client for emergency surgery
Correct answer: D
Rationale: The correct answer is to prepare the client for emergency surgery. The client's presentation with bright red blood in vomitus suggests active bleeding, which is a medical emergency. With a hemoglobin of 12 g/dL and a hematocrit of 35%, the client is likely experiencing significant blood loss that may require surgical intervention to address the source of bleeding. Continuing to monitor for blood loss (Choice A) is not appropriate in this acute situation where immediate action is necessary. Administering normal saline (Choice B) may help with fluid resuscitation but does not address the underlying cause of bleeding. Transfusing platelets (Choice C) is not indicated in this scenario as platelets are involved in clot formation and are not the primary treatment for active bleeding in this context.
4. A client who is experiencing respiratory distress is admitted with respiratory acidosis. Which pathophysiological process supports the client's respiratory acidosis?
- A. Carbon dioxide is converted in the kidneys for elimination.
- B. Blood oxygen levels are stimulating the respiratory rate.
- C. Hyperventilation is eliminating carbon dioxide rapidly.
- D. High levels of carbon dioxide have accumulated in the blood.
Correct answer: D
Rationale: The correct answer is D. High levels of carbon dioxide in the blood are indicative of respiratory acidosis, often due to inadequate ventilation. In respiratory acidosis, there is retention of carbon dioxide (hypercapnia) leading to an increase in carbonic acid levels in the blood, resulting in an acidic pH. Option A is incorrect because carbon dioxide elimination primarily occurs through the lungs, not the kidneys. Option B is incorrect because blood oxygen levels primarily affect the respiratory rate to regulate oxygen levels, not carbon dioxide levels. Option C is incorrect because hyperventilation would lead to a decrease, not an increase, in carbon dioxide levels.
5. For a client with peripheral vascular disease (PVD) of the lower extremities who is trying to manage their condition well, which routine should the nurse evaluate as appropriate?
- A. Resting with the legs elevated above the level of the heart.
- B. Walking slowly but steadily for 30 minutes twice a day.
- C. Minimizing activity.
- D. Wearing antiembolism stockings at all times when out of bed.
Correct answer: B
Rationale: The correct answer is B. Walking slowly but steadily for 30 minutes twice a day is appropriate for clients with PVD as it helps stimulate collateral circulation and improve blood flow. Choice A is incorrect because while elevating the legs can help with symptoms temporarily, it is not as effective as walking for improving circulation. Choice C, minimizing activity, is not recommended as it can lead to further deconditioning and worsen symptoms. Choice D, wearing antiembolism stockings, is not specifically indicated for PVD and may not address the underlying circulation issues.
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