Nursing Elites

1. A client has the following arterial blood gas (ABG) results: pH 7.51, PCO2 31 mm Hg, PO2 94 mm Hg, HCO3 24 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: D

Rationale: The ABG results show a pH above the normal range (7.35-7.45) and a decreased PCO2, indicating respiratory alkalosis. In respiratory alkalosis, the pH is increased and the PCO2 is decreased. Metabolic acidosis (choice A) would present with a low pH and low HCO3 levels. Metabolic alkalosis (choice B) would show an increased pH and HCO3 levels. Respiratory acidosis (choice C) would have a low pH and an increased PCO2.

2. The nurse is obtaining the admission history for a client with suspected peptic ulcer disease (PUD). Which subjective data reported by the client supports this diagnosis?

• A. Frequent use of chewable and liquid antacids for indigestion
• B. Severe abdominal cramps and diarrhea after eating spicy foods
• C. Upper mid-abdominal gnawing and burning pain
• D. Marked weight loss and appetite over the last 3 to 4 months

Correct answer: C

Rationale: The correct answer is C: 'Upper mid-abdominal gnawing and burning pain.' This symptom is a classic presentation of peptic ulcer disease. Antacids (choice A) may provide relief but do not confirm the diagnosis. Severe abdominal cramps and diarrhea (choice B) are more suggestive of other conditions like irritable bowel syndrome. Weight loss and appetite changes (choice D) are non-specific and could be related to various health issues.

3. What is a key intervention for a patient with diabetic ketoacidosis (DKA)?

• A. Administering insulin
• B. Administering IV fluids
• C. Administering oral glucose
• D. Administering oral fluids

Correct answer: A

Rationale: Administering insulin is a crucial intervention for a patient with diabetic ketoacidosis (DKA) because it helps in managing hyperglycemia and ketosis by promoting the uptake of glucose by cells and inhibiting the production of ketones. IV fluids are necessary to correct dehydration and electrolyte imbalances commonly seen in DKA but are not the primary treatment for the condition. Administering oral glucose would exacerbate hyperglycemia in a patient with DKA, while administering oral fluids alone would not effectively address the underlying metabolic disturbances seen in DKA.

4. The client has had a femoral-popliteal bypass surgery 6 hours ago. Which assessment provides the most accurate information about the client's postoperative status?

• A. Radial pulse.
• B. Femoral pulse.
• C. Apical pulse.
• D. Dorsalis pedis pulse.

Correct answer: D

Rationale: Assessing the dorsalis pedis pulse is crucial after a femoral-popliteal bypass surgery to determine adequate circulation distal to the surgical site. A strong dorsalis pedis pulse indicates sufficient blood flow to the foot, which is essential for monitoring postoperative status. The radial pulse (A) is not the most relevant assessment as it does not provide direct information on circulation in the lower extremities. The femoral pulse (B) may not accurately reflect circulation distal to the surgical site. The apical pulse (C) is used primarily to assess the heartbeat and cardiac function, not circulation in the lower extremities.

5. 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.

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