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A healthcare provider is reviewing laboratory results for a client who is receiving heparin therapy. Which of the following results indicates that the medication is effective?
- A. Platelets 250,000/mm³
- B. aPTT 60 seconds
- C. Hemoglobin 15 g/dL
- D. INR 1.5
Correct Answer: B
Rationale: An aPTT of 60 seconds indicates that the client is receiving an effective dose of heparin. The activated partial thromboplastin time (aPTT) measures the time it takes for blood to clot and is used to monitor heparin therapy. A therapeutic range for aPTT during heparin therapy is usually 1.5 to 2 times the control value, which is around 25-35 seconds. Platelets, hemoglobin, and INR values are not direct indicators of the effectiveness of heparin therapy.
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A nurse is reviewing the results of an arterial blood gas analysis of a client who has chronic obstructive pulmonary disease. Which of the following results should the nurse expect?
- A. PaO2 of 95 mm Hg
- B. PaCO2 of 55 mm Hg
- C. HCO3 of 24 mEq/L
- D. pH level of 7.35
Correct Answer: B
Rationale: In chronic obstructive pulmonary disease, there is impaired gas exchange, leading to retention of carbon dioxide (CO2) and subsequent respiratory acidosis. A PaCO2 of 55 mm Hg is higher than the normal range (35-45 mm Hg) and is indicative of respiratory acidosis in COPD. Choices A, C, and D are not typically associated with COPD. PaO2 may be decreased, HCO3 may be elevated to compensate for acidosis, and pH may be lower than 7.35 due to respiratory acidosis in COPD.
How should fluid overload in a patient with heart failure be managed?
- A. Administer diuretics
- B. Increase fluid intake
- C. Provide oral fluids
- D. Provide chest physiotherapy
Correct Answer: A
Rationale: Administering diuretics is the appropriate management for fluid overload in a patient with heart failure. Diuretics help to reduce fluid retention by increasing urine output, thereby alleviating the fluid overload. Choices B, C, and D are incorrect. Increasing fluid intake would worsen the condition by adding more fluid to an already overloaded system. Providing oral fluids is not specific enough to address the excess fluid in the body, and chest physiotherapy is not indicated for managing fluid overload in heart failure patients.
A nurse is assessing a newborn's heart rate. Which of the following actions should the nurse take?
- A. Auscultate the apical pulse and count for 1 minute
- B. Place a sensor on the index finger
- C. Heat the skin prior to placing the probe
- D. Recheck after 10 minutes
Correct Answer: A
Rationale: Corrected Rationale: Auscultating the apical pulse and counting for one minute is the appropriate method to accurately measure a newborn's heart rate. The apical pulse is located at the point of maximum impulse (PMI), which is usually at the fourth or fifth intercostal space along the mid-clavicular line. This method allows for a precise assessment of the newborn's heart rate. Choice B, placing a sensor on the index finger, is incorrect because this method is more suitable for measuring oxygen saturation rather than heart rate. Choice C, heating the skin prior to placing the probe, is unnecessary for assessing heart rate and may lead to potential burns in newborns. Choice D, rechecking after 10 minutes, is not appropriate as immediate assessment and intervention may be required if an abnormal heart rate is detected in a newborn.
A nurse is planning care for a client who has cirrhosis. Which of the following interventions should the nurse include?
- A. Limit the client's sodium intake to 4 grams per day.
- B. Measure the client's abdominal girth daily.
- C. Monitor the client's urine specific gravity every 12 hours.
- D. Encourage the client to drink 3 liters of fluid per day.
Correct Answer: B
Rationale: The correct answer is to measure the client's abdominal girth daily. Measuring abdominal girth helps monitor for ascites, a common complication of cirrhosis. Limiting sodium intake is important in cirrhosis but there is no specific value given, making choice A less precise. Monitoring urine specific gravity is not directly related to cirrhosis management, making choice C incorrect. Encouraging the client to drink 3 liters of fluid per day may not be suitable for all patients with cirrhosis, especially those with fluid restrictions, so choice D is not the most appropriate intervention.
A client with heart failure is being taught about dietary modifications by a nurse. Which of the following client statements indicates an understanding of the teaching?
- A. I will increase my intake of canned vegetables.
- B. I will limit my daily sodium intake to 2 grams.
- C. I will increase my intake of whole grains.
- D. I will reduce my intake of processed meats.
Correct Answer: D
Rationale: The correct answer is 'D: I will reduce my intake of processed meats.' This choice indicates an understanding of the teaching because processed meats are high in sodium, which can worsen heart failure due to fluid retention. Choices A, B, and C do not directly address the issue of reducing sodium intake, which is crucial for clients with heart failure. Increasing canned vegetable intake (A) may not always be advisable due to potential high sodium content in canned products. Limiting sodium intake to 2 grams daily (B) is a good practice, but it's more specific to sodium restriction rather than addressing the source of sodium like processed meats. Increasing whole grains (C) is generally beneficial but does not directly relate to reducing sodium intake in heart failure clients.