HESI RN
HESI Fundamentals
1. When suctioning a tracheostomy, which action is most appropriate for the nurse to take?
- A. Use a sterile tube each time and suction for 30 seconds.
- B. Use sterile technique and turn the suction off as the catheter is introduced.
- C. Use clean technique and suction for 10 seconds.
- D. Discard the catheter at the end of every shift.
Correct answer: B
Rationale: When suctioning a tracheostomy, it is crucial to use sterile technique to prevent infections. Turning off the suction as the catheter is introduced is important to avoid trauma and injury to the tracheal walls. This technique helps maintain the integrity of the tracheostomy site and ensures proper care for the patient.
2. The healthcare provider is preparing a teaching plan for the parents of a 6-month-old infant with GERD. What instruction should the healthcare provider include when teaching the parents measures to promote adequate nutrition?
- A. Alternate glucose water with formula
- B. Mix the formula with rice cereal
- C. Add multivitamins with iron to the formula
- D. Use water to dilute the formula
Correct answer: B
Rationale: The correct instruction for promoting adequate nutrition in a 6-month-old infant with GERD is to mix the formula with rice cereal. This thickens the feed, reducing the risk of reflux, aiding in proper nutrition, and minimizing GERD symptoms. Choices A, C, and D are incorrect. Alternating glucose water with formula, adding multivitamins with iron to the formula, or diluting the formula with water are not recommended measures for promoting adequate nutrition in infants with GERD.
3. What is the most important assessment for the healthcare provider to conduct following the administration of epidural anesthesia to a client who is at 40-weeks gestation?
- A. Maternal blood pressure.
- B. Level of pain sensation
- C. Station of presenting part.
- D. Variability of fetal heart rate.
Correct answer: A
Rationale: Following the administration of epidural anesthesia, the most crucial assessment for the healthcare provider to conduct is monitoring maternal blood pressure. Epidural anesthesia can lead to hypotension as a common side effect, which can have significant implications for both the mother and the fetus. Therefore, close monitoring of maternal blood pressure is essential to detect and manage any hypotensive episodes promptly. Choices B, C, and D are important assessments during labor and delivery, but in this specific scenario of post-epidural anesthesia, monitoring maternal blood pressure takes precedence due to the potential risk of hypotension.
4. A molecule's specific heat is the amount of heat necessary to raise the temperature of 1 gram of that molecule by:
- A. One degree Celsius
- B. Five degrees Celsius
- C. Two degrees Celsius
- D. Four degrees Celsius
Correct answer: A
Rationale: The correct answer is A: 'One degree Celsius.' Specific heat is defined as the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius. This property is specific to each substance and is used in various calculations involving heat and temperature changes. Choices B, C, and D are incorrect because specific heat is always measured per one degree Celsius increase in temperature for one gram of the substance, not five degrees, two degrees, or four degrees.
5. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which intervention is most important?
- A. Administer intravenous fluids as prescribed.
- B. Monitor the client's urine output.
- C. Administer insulin as prescribed.
- D. Administer 50% dextrose IV push.
Correct answer: C
Rationale: Administering insulin is the most important intervention in managing diabetic ketoacidosis. In DKA, there is a lack of insulin leading to hyperglycemia and ketosis. Insulin administration helps to reduce blood glucose levels and correct metabolic acidosis, which are crucial in treating DKA. Administering intravenous fluids helps with dehydration, monitoring urine output is important to assess renal function, but the priority is addressing the underlying cause of DKA by administering insulin. Administering 50% dextrose IV push is incorrect as it would further elevate blood glucose levels, which is contraindicated in DKA.