ATI RN
Exam 4 Psychology 101
1. What is the result when a single zygote separates into two parts, each developing into a separate individual?
- A. Dizygotic twin
- B. Monozygotic twin
- C. Fraternal twin
- D. Nonidentical twin
Correct answer: B
Rationale: The correct answer is B, Monozygotic twin. A monozygotic twin, also known as an identical twin, is the result when a single zygote splits into two parts, leading to the development of two genetically identical individuals. Choices A, C, and D are incorrect because they do not accurately describe the scenario where a single zygote splits into two parts to form identical twins. Dizygotic twin (Choice A) refers to fraternal twins, which result from two separate eggs fertilized by two different sperm cells. Fraternal twin (Choice C) is another term for dizygotic twins, arising from two separate zygotes. Nonidentical twin (Choice D) is a synonymous term for dizygotic or fraternal twins, indicating that they are not genetically identical.
2. The nurse is caring for an infant who had surgical repair of a tracheoesophageal fistula 24 hours ago. Gastrostomy feedings have not been started. What do nursing actions related to the gastrostomy tube include?
- A. Keep the tube clamped.
- B. Suction the tube as needed.
- C. Leave the tube open to gravity drainage.
- D. Secure the tube with tape.
Correct answer: C
Rationale: Leaving the gastrostomy tube open to gravity drainage prevents the accumulation of air and fluids, reducing the risk of complications such as vomiting or aspiration in the immediate postoperative period. Keeping the tube clamped or suctioning it can lead to pressure buildup, increasing the risk of complications. Securing the tube with tape is important but not the primary action related to the gastrostomy tube in this case.
3. What is the priority action for a patient experiencing chest pain from acute coronary syndrome?
- A. Administer sublingual nitroglycerin
- B. Administer aspirin
- C. Obtain IV access
- D. Check cardiac enzymes
Correct answer: A
Rationale: The correct answer is to administer sublingual nitroglycerin. This medication helps to dilate the blood vessels, reduce the workload on the heart, and improve blood flow to the heart muscle, providing immediate relief for chest pain in acute coronary syndrome. Administering aspirin is also crucial in the early management of acute coronary syndrome to prevent further clot formation. However, in terms of immediate symptom relief, nitroglycerin takes precedence over aspirin. Obtaining IV access is important for administering medications and fluids but is not the priority over providing immediate relief for chest pain. Checking cardiac enzymes is essential for diagnosing acute coronary syndrome but is not the immediate priority when a patient is experiencing chest pain.
4. The nurse is caring for a client with chronic gastritis. The nurse monitors the client, knowing that this client is at risk for which of the following vitamin deficiencies?
- A. Vitamin A
- B. Vitamin B12
- C. Vitamin C
- D. Vitamin E
Correct answer: B
Rationale: Clients with chronic gastritis are at risk for Vitamin B12 deficiency due to impaired absorption.
5. How should the nurse manage the client's pain if a client with a history of substance abuse is requesting pain medication?
- A. Administer the medication as requested
- B. Assess the patient's pain level first
- C. Administer a placebo to the client
- D. Refuse to give any medication to the client
Correct answer: B
Rationale: When a client with a history of substance abuse requests pain medication, the nurse should first assess the patient's pain level. It is important to determine the nature and intensity of the pain before administering any medication to ensure appropriate pain management. Administering medication without assessing the pain level can lead to unnecessary drug administration or inadequate pain relief. Administering a placebo would be unethical and ineffective. Refusing to give any medication without proper assessment can compromise the client's comfort and recovery. Therefore, the correct approach is to assess the patient's pain level first before deciding on the most suitable pain management intervention.
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