Nursing Elites

1. Why is lactated Ringer’s solution given to a patient experiencing vomiting and diarrhea?

• A. To increase interstitial and intracellular hydration
• B. To maintain plasma volume over time
• C. To pull water from the interstitial space into the extracellular fluid
• D. To replace water and electrolytes

Correct answer: D

Rationale: Lactated Ringer’s solution is an isotonic solution commonly used to replace water and electrolytes lost due to conditions like vomiting and diarrhea. It helps to restore fluid balance by replacing the lost volume and electrolytes. Option A is incorrect because hypotonic fluids, not lactated Ringer’s solution, increase interstitial and intracellular hydration. Option B is incorrect as colloidal solutions, not lactated Ringer’s solution, are used to maintain plasma volume over time. Option C is incorrect as hypertonic solutions, not lactated Ringer’s solution, pull water from the interstitial space into the extracellular fluid.

2. A client presents with a fungal urinary tract infection (UTI). Which assessments should the nurse complete? (Select all that apply.)

• A. Palpate the kidneys and bladder.
• B. Assess the medical history and current medical problems.
• C. Perform a bladder scan to assess post-void residual.
• D. Inquire about recent travel to foreign countries.

Correct answer: B

Rationale: When assessing a client with a fungal UTI, the nurse should prioritize gathering information related to the medical history and current medical problems. Clients who are severely immunocompromised or have conditions like diabetes mellitus are more susceptible to fungal UTIs. Assessing the medical history helps identify risk factors and potential causes of the infection. While physical examinations like palpating the kidneys and bladder and performing a bladder scan may be necessary, they should follow the initial assessment of medical history. Inquiring about recent travel to foreign countries is less relevant in the context of a fungal UTI, as the focus should be on immediate medical factors predisposing the client to the infection.

3. A client is returning home after arthroscopy of the shoulder. The nurse should tell the client:

• A. To resume full activity the next day
• B. Not to eat or drink anything until the next morning
• C. To keep the shoulder completely immobilized for the rest of the day
• D. To report to the physician the development of fever or redness and heat at the site

Correct answer: D

Rationale: After arthroscopy, it is important for the client to report any signs of infection, such as the development of fever or redness and heat at the site, to the physician promptly. Options A, B, and C are incorrect. The client should not resume full activity the next day as rest and limited movement are usually recommended post-arthroscopy. It is not necessary to withhold food or fluids until the next morning; the client may resume the usual diet immediately unless otherwise instructed. While immobilization may be recommended for a period, keeping the shoulder completely immobilized for the rest of the day is not typically necessary post-arthroscopy.

4. A client has had a pulmonary artery catheter inserted. In performing hemodynamic monitoring with the catheter, the nurse will wedge the catheter to gain information about which of the following?

• A. Cardiac output.
• B. Right atrial blood flow.
• C. Left end-diastolic pressure.
• D. Cardiac index.

Correct answer: C

Rationale: The correct answer is C: Left end-diastolic pressure. Wedging the pulmonary artery catheter allows the nurse to obtain the pulmonary artery wedge pressure, which reflects the left end-diastolic pressure. This pressure is essential in assessing left ventricular function and diagnosing conditions like heart failure. Choices A, B, and D are incorrect because wedging the catheter does not directly provide information about cardiac output, right atrial blood flow, or cardiac index.

5. The nurse is caring for a newly admitted patient who will receive digoxin to treat a cardiac dysrhythmia. The patient takes hydrochlorothiazide (HydroDIURIL) and reports regular use of over-the-counter laxatives. Before administering the first dose of digoxin, the nurse will review the patient’s electrolytes with careful attention to the levels of which electrolytes?

• A. Calcium and magnesium
• B. Sodium and calcium
• C. Potassium and chloride
• D. Potassium and magnesium

Correct answer: D

Rationale: Before administering digoxin, the nurse must review the patient's electrolyte levels, focusing on potassium and magnesium. Hypomagnesemia, similar to hypokalemia, can enhance the action of digitalis and lead to digitalis toxicity. Laxatives and diuretics, like hydrochlorothiazide, can deplete both potassium and magnesium. Therefore, monitoring these electrolytes is crucial to prevent potential adverse effects associated with digoxin therapy. Choice A (Calcium and magnesium) is incorrect because calcium levels are not specifically mentioned as crucial for digoxin therapy. Choice B (Sodium and calcium) is incorrect as sodium is not typically monitored in relation to digoxin therapy. Choice C (Potassium and chloride) is incorrect because although potassium is vital, chloride is not typically associated with digoxin therapy.

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