ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. . A nurse assesses a client with diabetes mellitus who is admitted with an acid-base imbalance. The clients arterial blood gas values are pH 7.36, PaO2 98 mm Hg, PaCO2 33 mm Hg, and HCO3 18 mEq/L. Which manifestation should the nurse identify as an exam
- A. Increased rate and depth of respirations
- B. ncreased urinary output
- C. Increased thirst and hunger
- D. ncreased release of acids from the kidneys
Correct answer: Increased rate and depth of respirations
Rationale:
2. Two RNs are discussing the benefits of professional liability insurance. Which of the following is a reason for an RN to have a professional liability insurance policy?
- A. No expenses are involved in frivolous lawsuits.
- B. If a nurse is found guilty of malpractice, the institution can sue the nurse.
- C. Liability policies may also cover charges of libel, slander, assault, and HIPAA violations.
- D. Only doctors are sued for malpractice.
Correct answer: C
Rationale: Professional liability insurance is essential for nurses to have as it may cover charges of libel, slander, assault, and HIPAA violations. Option A is incorrect as there are expenses involved in frivolous lawsuits. Option B is incorrect because if a nurse is found guilty of malpractice, the institution can sue the nurse. Option D is incorrect as nurses can also be sued for malpractice, not just doctors.
3. Select all that apply. Characteristics of the 2 main types of essential fatty acids discussed in class include:
- A. they must be supplied by the diet
- B. they can be produced by a process called dehydrogenation
- C. they are anti-inflammatory
- D. they are all polyunsaturated fatty acids
Correct answer: A
Rationale: The correct answer is A: 'they must be supplied by the diet.' Essential fatty acids, like omega-3 and omega-6, cannot be produced by the body and must be obtained through the diet. They are polyunsaturated fatty acids, playing vital roles in inflammation and cell membrane structure. Choice B is incorrect because essential fatty acids cannot be produced by dehydrogenation, a process of removing hydrogen. Choice C is incorrect as not all essential fatty acids are anti-inflammatory; some have pro-inflammatory roles. Choice D is incorrect because not all essential fatty acids are polyunsaturated; omega-9, for example, is a monounsaturated essential fatty acid.
4. The nurse is administering a beta blocker to the client diagnosed with essential hypertension. Which data would cause the nurse to question administering the medication?
- A. The client’s BP is 110/70
- B. The client’s potassium level is 3.4 mEq/L
- C. The client has a barky cough
- D. The client’s apical pulse is 56
Correct answer: D
Rationale: The correct answer is D. A beta blocker should be withheld if the apical pulse is below 60, as it can further decrease the heart rate. Choice A is not a reason to question administering a beta blocker as the blood pressure is within normal range. Choice B is not directly related to the administration of a beta blocker. Choice C may indicate a potential adverse effect of another medication, but it does not specifically warrant questioning the administration of the beta blocker.
5. Your patient has the following arterial blood gas results: pH 7.26, PaCO2 28, HCO3 11 mEq/L. How would the nurse interpret the results?
- A. Respiratory acidosis with no compensation
- B. Metabolic alkalosis with a compensatory alkalosis
- C. Metabolic acidosis with no compensation
- D. Metabolic acidosis with a compensatory respiratory alkalosis
Correct answer: D
Rationale: The given arterial blood gas results show a low pH, indicating acidosis, with normal pH range being 7.35 to 7.45. The low PaCO2 suggests alkalosis, while the low bicarb level indicates acidosis. In this scenario, the primary issue is the metabolic acidosis, as the pH bicarb relationship supports this. The compensatory response to metabolic acidosis is a decrease in PaCO2, leading to a respiratory alkalosis. Therefore, the correct interpretation is 'Metabolic acidosis with a compensatory respiratory alkalosis.' Choices A, B, and C are incorrect as they do not accurately reflect the relationship between the pH, PaCO2, and HCO3 levels in the arterial blood gas results provided.
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