Nokea
The nurse is administering enoxaparin (Lovenox) to a client. What is the most important lab value to monitor?
- A. Platelet count
- B. Hemoglobin
- C. White blood cell count
- D. aPTT
Correct Answer: A
Rationale: The correct answer is A: Platelet count. Enoxaparin is an anticoagulant that works by preventing blood clots. Monitoring platelet count is crucial to assess for potential thrombocytopenia, a side effect of enoxaparin that can increase the risk of bleeding. Hemoglobin (B) and White blood cell count (C) are not directly affected by enoxaparin. aPTT (D) is not the most important lab value to monitor as enoxaparin does not directly affect this clotting parameter.
You may also like to solve these questions
The nurse determines that the treatment of heart failure has been successful when the patient experiences
- A. Weight loss and diuresis
- B. Warm skin and less fatigue
- C. Clear lung sounds and decreased heart rate
- D. Absence of chest pain and improved LOC
Correct Answer: C
Rationale: Successful treatment of heart failure is indicated by an absence of symptoms of pulmonary edema and hypoxemia, such as clear lung sounds and a normal heart rate.
What type of medication is used to relax the muscles around the airways and improve breathing in conditions like asthma and COPD?
- A. Bronchodilator
- B. Corticosteroid
- C. Mucolytic
- D. Antihistamine
Correct Answer: A
Rationale: The correct answer is A: Bronchodilator. Bronchodilators are used to relax the muscles around the airways, allowing them to open up and improve breathing in conditions like asthma and COPD. They work by widening the airways, making it easier to breathe. Corticosteroids (B) reduce inflammation, mucolytics (C) help loosen mucus, and antihistamines (D) are used for allergies and not specifically for relaxing muscles in the airways. Therefore, A is the correct choice for this question.
A patient recently had a cardiac catheterization via right-radial approach and now has a compression device in place. The patient reports numbness and pain in the right hand. The cardiac-vascular nurse notes a diminished pulse, with a cool and cyanotic hand. The nurse:
- A. calls the physician.
- B. performs an Allen test.
- C. reduces the pressure on the puncture site.
- D. uses the Doppler ultrasound to assess for pulse signals.
Correct Answer: C
Rationale: Reducing pressure on the puncture site is necessary to restore blood flow to the hand.
The client on amiodarone reports shortness of breath. What is the nurse's best response?
- A. Notify the healthcare provider immediately.
- B. Reassure the client that this is a common side effect.
- C. Instruct the client to monitor their symptoms at home.
- D. Suggest the client reduce physical activity.
Correct Answer: A
Rationale: The correct answer is A: Notify the healthcare provider immediately. Shortness of breath in a client on amiodarone can indicate a serious side effect such as pulmonary toxicity or interstitial lung disease. The nurse should prioritize the client's safety by promptly informing the healthcare provider for further evaluation and management. This is crucial to prevent potential harm or worsening of the condition.
Summary:
- Choice B is incorrect because shortness of breath with amiodarone is not a common side effect to be reassured about.
- Choice C is incorrect as monitoring symptoms at home may delay necessary medical intervention.
- Choice D is incorrect as reducing physical activity does not address the potential serious side effect of amiodarone.
Where is the impulse from the SA node delayed, enabling atrial contraction to complete before the ventricles are stimulated and contract?
- A. AV node
- B. Bundle of His
- C. SA node
- D. Aorta
Correct Answer: A
Rationale: The impulse from the SA node is delayed at the AV node to allow time for the atria to contract before the ventricles. The AV node acts as a gatekeeper, slowing down the electrical signal before transmitting it to the Bundle of His, which then conducts the signal to the ventricles. This delay ensures proper coordination between atrial and ventricular contractions. Choices C and D are incorrect as the SA node does not delay its own impulse, and the aorta is not involved in the conduction system.