A nurse in an emergency department is reviewing a client's ECG reading.
Which of the following findings should the nurse identify as an indication that the client has first-degree heart block?
Prolonged PR intervals.
Nondiscernible P waves.
More P waves than QRS complexes.
No correlation between P and QRS waves.
The Correct Answer is A
First-degree heart block is a type of atrioventricular (AV) block that involves the consistent prolongation of the PR interval (defined as >0.20 seconds) due to delayed conduction via the atrioventricular node.
This is seen on an ECG as a PR interval greater than 200 ms in length.
Choice B: Nondiscernible P waves are not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice C: More P waves than QRS complexes is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Choice D: No correlation between P and QRS waves is not an answer because it is not mentioned as a characteristic of first-degree heart block in my sources.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is: b. “I apply a lubricating lotion to the cracked areas on the soles of my feet every morning.”
Choice A reason: Elevating the feet for long periods is not generally recommended for clients with Peripheral Arterial Disease (PAD). This is because elevation can decrease arterial blood flow to the feet, which is already compromised in PAD. The goal is to promote blood flow to the extremities, and elevation might work against this, especially if done for extended periods.
Choice B reason: Applying a lubricating lotion to the feet, particularly on the soles where the skin can become very dry and cracked, is beneficial for someone with PAD. It helps to maintain skin integrity and prevent skin breakdown, which can lead to serious complications due to the reduced blood flow and healing capacity in PAD.
Choice C reason: Soaking the feet in hot water is not advisable for individuals with PAD. They may have reduced sensation in their feet due to poor circulation, which increases the risk of burns from hot water. Additionally, prolonged soaking can lead to maceration of the skin, making it more susceptible to injury and infection.
Choice D reason: Using a heating pad, even on a low setting, to keep the feet warm is risky for clients with PAD. Due to decreased sensation from poor circulation, there is a danger of burns because the client may not feel how hot the heating pad is. It’s better to wear warm socks or use room temperature control to keep the feet warm.
Correct Answer is D
Explanation
“I should expect less than 25 mL of secretions per day in the drainage devices.” After a mastectomy with breast reconstruction using a tissue expander, you may go home with drains in your chest to remove extra fluid.
Choice A is wrong because performing strength-building arm exercises using a 15-pound weight is not recommended.
Choice B is wrong because waiting 2 months before additional saline can be added to the breast expander is not accurate.
Choice C is wrong because keeping the left arm flexed at the elbow as much as possible is not recommended.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today