HESI RN
HESI 799 RN Exit Exam Quizlet
1. The nurse is caring for a client with a chest tube following a pneumothorax. Which finding requires immediate intervention?
- A. Oxygen saturation of 94%
- B. Crepitus around the insertion site
- C. Subcutaneous emphysema
- D. Drainage of 50 ml per hour
Correct answer: C
Rationale: Subcutaneous emphysema is the most critical finding requiring immediate intervention in a client with a chest tube following a pneumothorax. It may indicate a pneumothorax recurrence or air leak, which can lead to respiratory compromise. Oxygen saturation of 94% is slightly low but may not require immediate intervention. Crepitus around the insertion site can be a normal finding post-procedure. Drainage of 50 ml per hour is within the expected range for a chest tube output and does not indicate an immediate concern.
2. What cell structure is responsible for efficiently packaging DNA into a small volume to fit into the nucleus of a cell and protect the DNA structure and sequence?
- A. Golgi apparatus
- B. Chromatin
- C. Smooth endoplasmic reticulum
- D. Mitochondria
Correct answer: B
Rationale: Chromatin is the correct answer. Chromatin is responsible for packaging DNA into a more compact, dense structure to fit into the nucleus and protect the DNA. The Golgi apparatus is involved in processing and packaging proteins, not DNA. Smooth endoplasmic reticulum is involved in lipid metabolism and detoxification. Mitochondria are known as the powerhouse of the cell responsible for energy production, not DNA packaging.
3. A client with a history of substance abuse is admitted to the hospital for treatment of a new illness. Which of the following is the most important to assess upon admission?
- A. History of recent drug use.
- B. Current employment status.
- C. Family history of mental illness.
- D. Recent weight changes.
Correct answer: A
Rationale: Assessing the history of recent drug use is crucial when admitting a client with a history of substance abuse. Understanding recent drug use helps in managing potential withdrawal symptoms, preventing drug interactions with the new treatment, and ensuring appropriate care. Assessing current employment status (choice B) is important for social and financial support but is not as crucial as assessing recent drug use in this scenario. Family history of mental illness (choice C) and recent weight changes (choice D) are also important aspects of assessment but are not as immediate and critical as evaluating recent drug use in a client with a history of substance abuse.
4. A client with deep vein thrombosis (DVT) is prescribed warfarin. What lab value should the nurse review before administering the medication?
- A. Prothrombin time (PT)
- B. Hemoglobin and hematocrit (H&H)
- C. International Normalized Ratio (INR)
- D. Partial thromboplastin time (PTT)
Correct answer: C
Rationale: The correct answer is C: International Normalized Ratio (INR). Before administering warfarin to a client with deep vein thrombosis, the nurse should review the INR to ensure the client is within the therapeutic range. INR is specifically monitored for patients on warfarin therapy to assess the clotting ability of the blood. Choices A, B, and D are incorrect as they are not the primary lab value used to monitor warfarin therapy. Prothrombin time (PT) is used to measure how long blood takes to clot. Hemoglobin and hematocrit (H&H) assess for anemia and the blood's oxygen-carrying capacity. Partial thromboplastin time (PTT) is used to monitor heparin therapy, not warfarin.
5. A 9-year-old boy with tetralogy of Fallot is being discharged following a cardiac catheterization. Which discharge instruction should the nurse provide the parents?
- A. Do not allow the child to return to school for at least one month
- B. Notify the healthcare provider if there is any drainage at the catheterization site
- C. Monitor the child's temperature and report any elevation
- D. Observe for any changes in the child's color or energy level
Correct answer: B
Rationale: The correct answer is to notify the healthcare provider if there is any drainage at the catheterization site. Drainage at the site can be a sign of infection, which needs prompt evaluation and treatment. Choices A, C, and D are not as crucial as identifying and reporting any drainage, which is more directly related to potential complications post-cardiac catheterization.