Nokea
A patient with a diagnosis of deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the heparin therapy?
- A. Prothrombin time (PT)
- B. Partial thromboplastin time (PTT)
- C. Bleeding time
- D. Platelet count
Correct Answer: B
Rationale: The correct answer is B: Partial thromboplastin time (PTT). PTT is used to monitor the effectiveness of heparin therapy because heparin primarily affects the intrinsic pathway of the coagulation cascade, which is reflected in the PTT results. Monitoring PTT helps to ensure that the patient's blood is within the therapeutic range for anticoagulation.
A: Prothrombin time (PT) is used to monitor warfarin therapy, which affects the extrinsic pathway of the coagulation cascade.
C: Bleeding time is not typically used to monitor heparin therapy effectiveness.
D: Platelet count is important to monitor for heparin-induced thrombocytopenia, but it does not directly reflect the effectiveness of heparin therapy in preventing or treating DVT.
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What is the primary action of a short-acting beta2-agonist (SABA) prescribed to a patient with an acute asthma exacerbation?
- A. Reduce inflammation
- B. Relieve bronchospasm
- C. Thin respiratory secretions
- D. Suppress cough
Correct Answer: B
Rationale: The correct answer is B: Relieve bronchospasm. Short-acting beta2-agonists (SABAs) like albuterol act by stimulating beta2 receptors in the airway smooth muscle, leading to bronchodilation and relieving bronchospasm. This helps to quickly open up the airways during an acute asthma exacerbation. Choice A is incorrect because SABAs do not directly reduce inflammation. Choice C is incorrect as SABAs do not affect respiratory secretions. Choice D is incorrect as SABAs do not suppress cough but rather target bronchospasm.
The healthcare professional is caring for a client with heart failure who is receiving digoxin (Lanoxin). Which assessment finding requires immediate intervention?
- A. Heart rate of 58 beats per minute.
- B. Nausea and vomiting.
- C. Blood pressure of 130/80 mm Hg.
- D. Shortness of breath.
Correct Answer: B
Rationale: The correct answer is B: Nausea and vomiting. This finding requires immediate intervention because digoxin toxicity can present with gastrointestinal symptoms like nausea and vomiting. This can indicate an overdose of digoxin, which can be life-threatening. Prompt action is necessary to prevent further complications.
A: Heart rate of 58 beats per minute is within the therapeutic range for digoxin and does not require immediate intervention.
C: Blood pressure of 130/80 mm Hg is also within normal limits and does not indicate an urgent issue.
D: Shortness of breath can be a symptom of heart failure but is not a direct indication of digoxin toxicity requiring immediate intervention.
What is the primary cause of jaundice in a client with liver cirrhosis?
- A. Decreased bile production
- B. Increased bilirubin levels
- C. Hepatic inflammation
- D. Portal hypertension
Correct Answer: B
Rationale: The primary cause of jaundice in a client with liver cirrhosis is increased bilirubin levels. Liver cirrhosis impairs the liver's ability to process bilirubin, leading to its accumulation in the bloodstream. This excess bilirubin then causes the yellow discoloration of the skin and eyes characteristic of jaundice.
Incorrect Choices:
A: Decreased bile production is not the primary cause of jaundice in liver cirrhosis. While decreased bile flow may contribute to jaundice, it is secondary to the impaired bilirubin processing.
C: Hepatic inflammation is a common feature of liver cirrhosis but is not the direct cause of jaundice in this context.
D: Portal hypertension is a complication of liver cirrhosis but is not the primary cause of jaundice.
A patient with hyperthyroidism is to receive radioactive iodine therapy. What information should the nurse include in the patient teaching plan?
- A. Avoid close contact with pregnant women for one week.
- B. Take iodine supplement daily.
- C. Restrict fluid intake to 1 liter per day.
- D. Use disposable utensils for all meals.
Correct Answer: A
Rationale: The correct answer is A. The rationale is that radioactive iodine therapy can harm a developing fetus, so patients should avoid close contact with pregnant women for one week. Choice B is incorrect as iodine supplements can interfere with the therapy. Choice C is incorrect as fluid intake should not be restricted unless specifically advised by the healthcare provider. Choice D is incorrect as there is no need to use disposable utensils for all meals.
A client with type 1 diabetes mellitus is experiencing nausea and vomiting. What advice should the nurse give regarding insulin administration?
- A. Skip your insulin dose until you can eat.'
- B. Take your insulin as prescribed, but monitor your blood glucose closely.'
- C. Reduce your insulin dose by half.'
- D. Only take your long-acting insulin.'
Correct Answer: B
Rationale: The correct answer is B because skipping insulin can lead to dangerous complications like diabetic ketoacidosis. Taking insulin as prescribed ensures blood glucose control, preventing hyperglycemia. Monitoring blood glucose closely helps adjust doses accordingly. Choice A is incorrect as skipping insulin can be life-threatening. Choice C is incorrect as reducing insulin without proper monitoring can lead to unstable glucose levels. Choice D is incorrect as both long-acting and short-acting insulin are essential for managing type 1 diabetes.