Nokea
Which of the following is a discharge criterion from the PACU for a patient following surgery?
- A. Oxygen saturation above 90%
- B. IV narcotics given less than 15 minutes ago
- C. Oxygen saturation below 90%
- D. IV narcotics given less than 30 minutes ago
Correct Answer: A
Rationale: The correct answer is A: Oxygen saturation above 90%. This is a discharge criterion because adequate oxygen saturation indicates the patient is breathing well and there is no immediate respiratory compromise. Oxygen saturation below 90% (choice C) would indicate hypoxemia and would not be safe for discharge. IV narcotics given less than 15 minutes ago (choice B) can still be in effect and may impair the patient's ability to function post-surgery. IV narcotics given less than 30 minutes ago (choice D) is a longer timeframe but still not ideal for discharge as the effects of the narcotics may not have fully worn off.
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The nurse is caring for a client with bronchogenic carcinoma. Which nursing diagnosis takes highest priority?
- A. Disturbed body image related to changes in body functions
- B. Ineffective airway clearance related to obstruction by a tumor or secretions
- C. Anxiety related to actual threat to health status and changes in family dynamics
- D. Imbalanced nutrition: Less than body requirements related to anorexia and vomiting secondary to chemotherapy
Correct Answer: B
Rationale: The correct answer is B: Ineffective airway clearance related to obstruction by a tumor or secretions. This is the highest priority because compromised airway clearance can lead to life-threatening complications such as respiratory distress or hypoxia. Ensuring effective airway clearance is crucial in preventing respiratory compromise and maintaining oxygenation. Choices A, C, and D are not the highest priority because they do not directly address the immediate risk to the client's physiological well-being. Treating disturbed body image, anxiety, or imbalanced nutrition are important but can be addressed after ensuring the client's airway is clear and they are able to breathe effectively.
Antimetabolites are a diverse group of antineoplastic agents that interfere with various metabolic actions of the cell. The mechanism of action of antimetabolites interferes with:
- A. Cell division or mitosis during the M phase of the cell cycle.
- B. Normal cellular processes during the S phase of the cell cycle.
- C. The chemical structure of deoxyribonucleic acid (DNA) and chemical binding between DNA molecules (cell cycle-nonspecific).
- D. One or more stages of ribonucleic acid (RNA) synthesis, DNA synthesis, or both (cell cycle- nonspecific).
Correct Answer: D
Rationale: The correct answer is D because antimetabolites interfere with the synthesis of nucleic acids (RNA and/or DNA), affecting multiple stages of RNA and DNA synthesis. This disruption hinders cell division and leads to cell death. Choices A and B are incorrect because antimetabolites do not specifically target cell division during the M phase or normal cellular processes during the S phase. Choice C is also incorrect because antimetabolites primarily target nucleic acid synthesis rather than altering the chemical structure of DNA or the binding between DNA molecules.
Which instruction about insulin administration should the nurse give to a client?
- A. “Always follow the same order when drawing the different insulin into the syringe.”
- B. “Shake the vial before withdrawing the insulin.”
- C. “Store unopened vials of insulin in the freezer at temperatures well below freezing.”
- D. “Discard the intermediate-acting insulin if it disappears cloudy.”
Correct Answer: A
Rationale: The correct answer is A because maintaining consistency in the order of drawing different types of insulin into the syringe helps prevent medication errors. When mixing insulins, drawing them in the same sequence ensures the correct dose and prevents contamination.
Explanation:
A: Following the same order ensures accurate dosing and minimizes the risk of mixing up insulins.
B: Shaking the vial can cause air bubbles which can affect the accuracy of the dose.
C: Storing insulin in the freezer can damage the medication and alter its effectiveness.
D: Cloudiness in intermediate-acting insulin is normal and does not indicate it should be discarded.
In the nursing diagnosis 'Disturbed Self-Esteem related to presence of large scar over left side of face,' what part of the nursing diagnosis is 'presence of large scar over left side of face'?
- A. Etiology
- B. Problem
- C. Defining characteristics
- D. Client need
Correct Answer: A
Rationale: The correct answer is A: Etiology. Etiology in a nursing diagnosis refers to the cause or contributing factors that lead to the identified problem. In this case, the presence of a large scar over the left side of the face is the underlying cause of the disturbed self-esteem. It directly influences the client's self-perception and self-worth. The problem (B) is the disturbed self-esteem itself, not the scar. Defining characteristics (C) are the signs and symptoms that support the nursing diagnosis. Client need (D) is a broader concept that encompasses the overall needs of the client, whereas etiology specifically focuses on the cause of the problem.
The cause of death of most AIDS patients who develop multiple opportunistic infections is/are the following: a.Weakened immune system impairs response to therapy
- A. AH of these (a, b, c)
- B. Weakened immune system impairs resistance to infection
- C. Infection cannot be treated effectively
Correct Answer: A
Rationale: Rationale for Correct Answer (A): Most AIDS patients with multiple opportunistic infections die due to a weakened immune system impairing response to therapy. When the immune system is compromised, the body struggles to fight off infections effectively, even with treatment. This results in the infections becoming more severe and ultimately leading to death.
Summary of Other Choices:
B: Weakened immune system impairs resistance to infection - While this is true, it doesn’t directly address the cause of death in AIDS patients with multiple infections.
C: Infection cannot be treated effectively - This is not entirely accurate as infections can be treated, but the weakened immune system hinders the response to treatment.
Overall, Choice A is the most accurate as it directly links the weakened immune system to the inability to respond effectively to therapy, leading to fatal outcomes.