ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. A nurse assesses a client who is experiencing an acid-base imbalance. The clients arterial blood gas values are pH 7.34, PaO2 88 mm Hg, PaCO2 38 mm Hg, and HCO3 19 mEq/L. Which assessment should the nurse perform first?
- A. . Cardiac rate and rhythm
- B. Skin and mucous membranes
- C. Musculoskeletal strength
- D. Level of orientation
Correct answer: . Cardiac rate and rhythm
Rationale:
2. You are the nurse caring for a patient who is to receive IV daunorubicin, a chemotherapeutic agent. You start the infusion and check the insertion site as per protocol. During your most recent check, you note that the IV has infiltrated so you stop the infusion. What is your main concern with this infiltration?
- A. Extravasation of the medication
- B. Discomfort to the patient
- C. Blanching at the site
- D. Hypersensitivity reaction to the medication
Correct answer: Extravasation of the medication
Rationale:
3. Which hormones increase the amount of water in the body?
- A. ADH
- B. Aldosterone
- C. ANH
- D. ADH and aldosterone
Correct answer: D
Rationale: The correct answer is D, ADH and aldosterone. Both antidiuretic hormone (ADH) and aldosterone increase water retention by the kidneys, thereby increasing blood volume. ADH acts on the kidneys to increase water reabsorption, while aldosterone acts on the kidneys to promote sodium reabsorption, leading to water retention. Choice A, ADH, is partially correct as it alone increases water retention. Choice B, aldosterone, is also partially correct as it alone increases water retention. Choice C, ANH (atrial natriuretic hormone), actually decreases water retention by promoting sodium excretion and inhibiting aldosterone release.
4. The nurse is providing care for a patient with chronic obstructive pulmonary disease. When describing the process of respiration the nurse explains how oxygen and carbon dioxide are exchanged between the pulmonary capillaries and the alveoli. The nurse is describing what process?
- A. Diffusion
- B. Osmosis
- C. Active transport
- D. Filtration
Correct answer: Diffusion
Rationale:
5. A home care nurse prepares to administer intravenous medication to a client. The nurse assesses the site and reviews the clients chart prior to administering the medication: Client: Thomas Jackson DOB: 5/3/1936 Gender: Male January 23 (Today): Right uppe
- A. Notify the health care provider
- B. . Administer the prescribed medication.
- C. Discontinue the PICC
- D. Switch the medication to the oral route
Correct answer: . Administer the prescribed medication.
Rationale:
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