Nursing Elites

1. The nurse is assessing a client with left-sided heart failure. Which laboratory value is most concerning?

• A. Serum creatinine of 1.5 mg/dL
• B. Serum sodium of 136 mEq/L
• C. Serum potassium of 5.5 mEq/L
• D. Hemoglobin of 12 g/dL

Correct answer: C

Rationale: A serum potassium level of 5.5 mEq/L is most concerning in a client with left-sided heart failure as it indicates hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias, which can exacerbate heart failure. Serum creatinine of 1.5 mg/dL is slightly elevated but not as immediately concerning as hyperkalemia. Serum sodium of 136 mEq/L is within the normal range. Hemoglobin of 12 g/dL is also within the normal range and not directly related to the client's left-sided heart failure.

2. A client with chronic kidney disease (CKD) is scheduled for a hemodialysis session. Which laboratory value should the nurse monitor closely?

• A. Serum potassium
• B. Serum creatinine
• C. Serum sodium
• D. Serum chloride

Correct answer: C

Rationale: The correct answer is C: Serum sodium. In a client with chronic kidney disease (CKD) scheduled for hemodialysis, monitoring serum sodium levels closely is essential. Hemodialysis can cause rapid shifts in sodium levels, leading to electrolyte imbalances. While serum potassium (choice A) is important to monitor in CKD, it is not the most crucial before hemodialysis. Serum creatinine (choice B) is an indicator of kidney function but is not the most immediate concern before hemodialysis. Serum chloride (choice D) is not typically the primary electrolyte of concern in CKD patients before hemodialysis.

3. A client with end-stage renal disease (ESRD) is receiving hemodialysis. Which laboratory value should the nurse monitor closely?

• A. Serum calcium level of 9 mg/dl
• B. Serum potassium level of 4.5 mEq/L
• C. Serum creatinine level of 2.0 mg/dl
• D. Serum sodium level of 138 mEq/L

Correct answer: C

Rationale: The correct answer is C: Serum creatinine level of 2.0 mg/dl. In a client with ESRD receiving hemodialysis, serum creatinine should be closely monitored. Elevated creatinine levels indicate impaired kidney function. Monitoring serum calcium levels (Choice A), serum potassium levels (Choice B), and serum sodium levels (Choice D) is also important in clients with ESRD, but the most crucial indicator of kidney function in this case is serum creatinine.

4. An adult client comes to the clinic and reports his concern over a lump that 'just popped up on my neck about a week ago.' In performing an examination of the lump, the nurse palpates a large, non-tender, hardened left subclavian lymph node. There is no overlying tissue inflammation. What do these findings suggest?

• A. Malignancy
• B. Infection
• C. Benign cyst
• D. Lymphadenitis

Correct answer: A

Rationale: The findings of a large, non-tender, hardened lymph node, especially in the absence of overlying tissue inflammation, are indicative of malignancy. These characteristics raise suspicion for cancer, prompting the need for further investigation. Choice B, Infection, is incorrect because infection would typically present as a tender and possibly swollen lymph node. Choice C, Benign cyst, is incorrect as cysts are usually soft and movable. Choice D, Lymphadenitis, is incorrect as lymphadenitis usually presents with tender and enlarged lymph nodes in response to an infection.

5. While auscultating a client's heart sounds, which description should the nurse use to document a swishing sound related to blood turbulence or valvular defect?

• A. S1 S2
• B. S1 S2 S3
• C. Murmur
• D. Pericardial friction rub

Correct answer: C

Rationale: The correct answer is 'C: Murmur.' A murmur is auscultated as a swishing sound associated with blood turbulence caused by the heart or a valvular defect. Choices 'A: S1 S2' and 'B: S1 S2 S3' refer to normal heart sounds, specifically the closure of heart valves. 'D: Pericardial friction rub' is a dry, rubbing or grating sound caused by inflammation of the pericardial sac and is not associated with blood flow or valvular issues.

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