Nokea
A nurse reviews laboratory results for a client with glomerulonephritis. The client's glomerular filtration rate (GFR) is 40 mL/min as measured by a 24-hour creatinine clearance. How should the nurse interpret this finding? (Select all that apply.)
- A. Excessive GFR
- B. Reduced GFR
- C. Fluid retention and risks for hypertension
- D. Pulmonary edema
Correct Answer: B
Rationale: A GFR of 40 mL/min indicates a reduced glomerular filtration rate. In a healthy adult, the normal GFR ranges between 100 and 120 mL/min. A GFR of 40 mL/min signifies a significant reduction, leading to fluid retention and risks for hypertension and pulmonary edema due to excess vascular fluid. Choices A, C, and D are incorrect. Choice A is incorrect as a GFR of 40 mL/min is not excessive but rather reduced. Choices C and D do not directly address the interpretation of GFR but instead describe potential consequences of a reduced GFR.
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A healthcare professional is monitoring the respiratory status of a client who has just undergone surgery and is wearing a pulse oximeter. Which of the following coexisting problems is cause for the healthcare professional to suspect that the oxygen saturation readings are not entirely accurate?
- A. Infection
- B. Hypertension
- C. Low blood pressure
- D. Loss of cough reflex
Correct Answer: C
Rationale: Low blood pressure (hypotension), shock, and the use of peripheral vasoconstricting medications can lead to inaccurate pulse oximetry readings due to impaired peripheral perfusion. Hypertension and infection are not typically associated with inaccurate pulse oximetry readings, while the loss of cough reflex does not directly affect oxygen saturation readings.
A client is brought to the emergency department by a neighbor. The client is lethargic and has a fruity odor on the breath. The client's arterial blood gas (ABG) results are pH 7.25, PCO2 34 mm Hg, PO2 86 mm Hg, HCO3 14 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct Answer: A
Rationale: The correct answer is 'Metabolic acidosis.' Metabolic acidosis is characterized by a low pH (<7.35) and a low bicarbonate level (HCO3 <22 mEq/L). In this case, the client's ABG results show a pH of 7.25 and an HCO3 level of 14 mEq/L, indicating metabolic acidosis. The PCO2 of 34 mm Hg is normal, ruling out respiratory acidosis or alkalosis. The PO2 of 86 mm Hg is also within the normal range and is not indicative of a respiratory problem. Therefore, the client is experiencing metabolic acidosis based on the ABG results provided.
A client is hospitalized in the oliguric phase of acute kidney injury (AKI) and is receiving tube feedings. The nurse is teaching the client's spouse about the kidney-specific formulation for the enteral solution compared to standard formulas. What components should be discussed in the teaching plan? (Select all that apply.)
- A. Lower sodium
- B. Lower potassium
- C. Higher phosphorus
- D. A & B
Correct Answer: D
Rationale: In the oliguric phase of acute kidney injury (AKI), clients may require tube feedings with kidney-specific formulas. These formulations are lower in sodium and potassium, which are crucial considerations due to impaired kidney function. Higher phosphorus content is not a feature of kidney-specific formulations for AKI. Therefore, options A and B (lower sodium and lower potassium) should be discussed in the teaching plan. Option C, higher phosphorus, is incorrect as kidney-specific formulas are not intended to be higher in phosphorus content for AKI patients.
A male client comes into the emergency department with a serum creatinine of 2.2 mg/dL and a blood urea nitrogen (BUN) of 24 mg/dL. What question should the nurse ask first when taking this client's history?
- A. Have you been taking any aspirin, ibuprofen, or naproxen recently?
- B. Do you have anyone in your family with renal failure?
- C. Have you had a diet that is low in protein recently?
- D. Has a relative had a kidney transplant lately?
Correct Answer: A
Rationale: The correct question to ask the client first is about their recent intake of nephrotoxic medications like aspirin, ibuprofen, or naproxen. Elevated serum creatinine and BUN levels indicate possible renal issues, making it crucial to assess potential causes such as medication-induced nephrotoxicity. Inquiring about family history of renal failure or recent kidney transplants would not provide immediate insights into the client's current renal condition. While a diet low in protein could influence BUN levels, it is important to address medication history first due to the acute presentation in the emergency department.
A nursing assistant is measuring the blood pressure (BP) of a hypertensive client while a nurse observes. Which action on the part of the assistant would interfere with accurate measurement and prompt the nurse to intervene? Select all that apply.
- A. Measuring the BP after the client has sat quietly for 5 minutes
- B. Having the client sit with the arm bared and supported at heart level
- C. Using a cuff with a rubber bladder that encircles less than 80% of the limb
- D. Measuring the BP after the client reports that he just drank a cup of coffee
Correct Answer: C
Rationale: To ensure accurate blood pressure (BP) measurement, the cuff used should have a rubber bladder that encircles at least 80% of the limb being measured. This ensures proper compression and accurate readings. Choices A and B are correct practices as it is recommended to measure BP after the client has sat quietly for 5 minutes and to have the client sit with the arm bared and supported at heart level. Choice D is also a correct reason for intervention as the client should not have consumed caffeine or smoked tobacco within 30 minutes before BP measurement, as it can affect the accuracy of the reading.