HESI RN
HESI 799 RN Exit Exam
1. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which intervention should the nurse implement first?
- A. Elevate the head of the bed.
- B. Administer oxygen therapy as prescribed.
- C. Assess the client's oxygen saturation.
- D. Obtain an arterial blood gas (ABG) sample.
Correct answer: C
Rationale: Assessing the client's oxygen saturation is the first priority in managing a client with COPD receiving supplemental oxygen to ensure adequate oxygenation. Monitoring oxygen saturation levels helps in determining the effectiveness of the oxygen therapy and if adjustments are needed. Elevating the head of the bed can help with breathing but is not the first priority. Administering oxygen therapy as prescribed is important, but assessing the current oxygen saturation comes before administering more oxygen. Obtaining an arterial blood gas (ABG) sample may provide valuable information, but it is not the initial intervention needed in this situation.
2. The mother of a one-month-old boy born at home brings the infant to his first well-baby visit. She mentions that he was born two weeks after his due date and is a 'good, quiet baby' who almost never cries. To assess for hypothyroidism, what question is most important for the nurse to ask the mother?
- A. Has your son had any immunizations yet?
- B. Is your son sleepy and difficult to feed?
- C. Are you breastfeeding or bottle feeding your son?
- D. Were any relatives born with birth defects?
Correct answer: B
Rationale: The correct answer is B. Sleepiness and difficulty feeding are key signs of congenital hypothyroidism, which requires early diagnosis and treatment. Asking about immunizations (choice A) is important but not directly related to assessing hypothyroidism. The feeding method (choice C) is relevant for overall health but not specific to hypothyroidism. Inquiring about relatives with birth defects (choice D) is not the most crucial question to assess hypothyroidism in this scenario.
3. The nurse is assessing a primigravida at 39-weeks gestation during a weekly prenatal visit. Which finding is most important for the nurse to report to the healthcare provider?
- A. Fetal heart rate of 200 beats/minute.
- B. Mild ankle edema.
- C. Complaints of back pain.
- D. Decreased fetal movements.
Correct answer: A
Rationale: A fetal heart rate of 200 beats per minute is significantly elevated and requires immediate medical attention. This finding could indicate fetal distress, tachycardia, or other serious issues that need prompt evaluation. Mild ankle edema, complaints of back pain, and decreased fetal movements are common in pregnancy but are not as urgent or concerning as a high fetal heart rate.
4. A client with type 2 diabetes is admitted with hyperglycemic hyperosmolar syndrome (HHS). Which laboratory value requires immediate intervention?
- A. Serum glucose of 600 mg/dL
- B. Serum osmolarity of 320 mOsm/kg
- C. Serum sodium of 130 mEq/L
- D. Serum potassium of 5.0 mEq/L
Correct answer: B
Rationale: A serum osmolarity of 320 mOsm/kg is concerning in a client with HHS because it indicates severe dehydration and hyperosmolarity, which requires immediate intervention. In HHS, the elevated serum osmolarity leads to neurological symptoms and can result in serious complications if not addressed promptly. While a high serum glucose level (choice A) is typical in HHS, the osmolarity is a more direct indicator of dehydration and severity. Serum sodium (choice C) and potassium levels (choice D) are important but do not pose an immediate threat to the client's condition compared to the severe hyperosmolarity indicated by a high serum osmolarity level.
5. The nurse is reviewing a client's electrocardiogram and determines the PR interval (PRI) is prolonged. What does this finding indicate?
- A. Initiation of the impulses from a location outside the SA node
- B. Inability of the SA node to initiate an impulse at the normal rate
- C. Increased conduction time from the SA node to the AV junction
- D. Interference with the conduction through one or both ventricles
Correct answer: C
Rationale: When the PR interval is prolonged, it signifies an increased conduction time from the SA node through the AV junction. This finding is characteristic of a first-degree heart block where there is a delay in the electrical conduction at the level of the AV node. Choices A, B, and D are incorrect as they do not accurately reflect the significance of a prolonged PR interval.
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