Nokea
A healthcare professional reviews the blood gas results of a client in respiratory distress. The pH is 7.32, and the PCO2 is 50 mm Hg. Which of the following acid-base imbalances does the professional recognize in these findings?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct Answer: C
Rationale: In respiratory acidosis, the pH is low (<7.35) and the PCO2 is increased (>45 mm Hg). These findings indicate that the client is experiencing respiratory acidosis, a condition where there is an excess of carbon dioxide in the blood due to inadequate ventilation, commonly seen in respiratory distress. Metabolic acidosis (Choice A) is characterized by a low pH and decreased bicarbonate levels, which is not the case in this scenario. Metabolic alkalosis (Choice B) is associated with a high pH and increased bicarbonate levels. Respiratory alkalosis (Choice D) is marked by a high pH and decreased PCO2, opposite to the values presented in the blood gas results of this client.
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The nurse is assessing a client with a diagnosis of pre-renal acute kidney injury (AKI). Which condition would the nurse expect to find in the client's recent history?
- A. Pyelonephritis
- B. Myocardial infarction
- C. Bladder cancer
- D. Kidney stones
Correct Answer: B
Rationale: In pre-renal acute kidney injury, there is a decrease in perfusion to the kidneys. Myocardial infarction can lead to decreased blood flow to the kidneys, causing pre-renal AKI. Pyelonephritis is an intrinsic/intrarenal cause of AKI involving kidney damage. Bladder cancer and kidney stones are post-renal causes of AKI due to urinary flow obstruction, not related to perfusion issues seen in pre-renal AKI.
The nurse is preparing to administer digoxin to a patient who is newly admitted to the intensive care unit. The nurse reviews the patient's admission electrolytes and notes a serum potassium level of 2.9 mEq/L. Which action by the nurse is correct?
- A. Administer the digoxin and monitor the patient's electrocardiogram closely.
- B. Hold the digoxin dose and notify the provider of the patient's lab values.
- C. Request an order for an intravenous bolus of potassium.
- D. Request an order for oral potassium supplements.
Correct Answer: B
Rationale: In the scenario presented, the patient has a low serum potassium level, which can predispose the patient to digoxin toxicity. It is essential for the nurse to hold the digoxin dose and promptly notify the healthcare provider of the abnormal lab values. Option A is incorrect because administering digoxin without addressing the low potassium level can potentiate toxicity. Option C is inappropriate as potassium should not be given as an IV bolus, especially in the case of hypokalemia. Option D is incorrect because oral potassium supplements may not be sufficient for rapidly correcting severe hypokalemia in an acute care setting.
After delegating care to an unlicensed assistive personnel (UAP) for a client who is prescribed habit training to manage incontinence, a nurse evaluates the UAP's understanding. Which action indicates the UAP needs additional teaching?
- A. Toileting the client after breakfast
- B. Changing the client's incontinence brief when wet
- C. Encouraging the client to drink fluids
- D. Recording the client's incontinence episodes
Correct Answer: B
Rationale: The correct action that indicates the UAP needs additional teaching is choice B, 'Changing the client's incontinence brief when wet.' Habit training is a technique used to manage incontinence, and it is undermined by the use of absorbent incontinence briefs or pads. The nurse should re-educate the UAP on the technique of habit training, which involves scheduled toileting and promoting bladder control. Choices A, C, and D are appropriate actions that support the client's care: toileting the client after meals, encouraging fluid intake, and documenting incontinence episodes are all important aspects of managing incontinence and monitoring the client's condition.
The nurse is preparing to administer the first dose of hydrochlorothiazide (HydroDIURIL) 50 mg to a patient who has a blood pressure of 160/95 mm Hg. The nurse notes that the patient had a urine output of 200 mL in the past 12 hours. The nurse will perform which action?
- A. Administer the medication as ordered.
- B. Encourage the patient to drink more fluids.
- C. Hold the medication and request an order for serum BUN and creatinine.
- D. Request an order for serum electrolytes and administer the medication.
Correct Answer: C
Rationale: The correct action is to hold the medication and request an order for serum BUN and creatinine. Thiazide diuretics, such as hydrochlorothiazide, are contraindicated in renal failure. In this case, the patient has oliguria, which is a reduced urine output, indicating potential renal insufficiency. Before administering the diuretic, it is crucial to evaluate the patient's renal function through serum BUN and creatinine levels. Encouraging the patient to drink more fluids (Choice B) may not address the underlying issue of renal function. Administering the medication as ordered (Choice A) without assessing renal function can be harmful. Requesting serum electrolytes and administering the medication (Choice D) overlooks the need for a specific evaluation of renal function in this scenario.
A healthcare professional assesses clients on the medical-surgical unit. Which client is at greatest risk for the development of bacterial cystitis?
- A. A 36-year-old female who has never been pregnant
- B. A 42-year-old male who is prescribed cyclophosphamide
- C. A 58-year-old female who is not taking estrogen replacement
- D. A 77-year-old male with mild congestive heart failure
Correct Answer: C
Rationale: Females are at higher risk of developing bacterial cystitis due to their shorter urethra compared to males. Postmenopausal women not on estrogen replacement therapy are particularly susceptible to cystitis because of changes in vaginal and urethral cells. This increases the risk of bacterial infection. The other options do not have the same level of risk as the postmenopausal woman not using hormone replacement therapy. A never-pregnant middle-aged woman does not have the same increased risk as a postmenopausal woman with hormonal changes.