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
A client reports having a fever, night sweats, and cough for 2 days.
These symptoms are associated with infectious diseases such as tuberculosis.
In order to prevent the spread of infection to other patients, this client would require a private room.
A client with diabetes mellitus and acute ketoacidosis does not require a private room based on their diagnosis.
C)A client with a compound fracture of the right femur does not require a private room based on their diagnosis.
D)An older adult client with aspiration pneumonia does not require a private room based on their diagnosis.
Correct Answer is B
Explanation
The correct answer is choice B: Insert an NG tube.
Choice A rationale: Inserting an indwelling urinary catheter may be necessary for monitoring urine output in some cases, but in this situation, the priority is to insert an NG tube. This will help prevent aspiration during surgery due to the client's high blood alcohol level, which increases the risk of vomiting.
Choice B rationale: Inserting an NG tube is the priority action for the nurse because a high blood alcohol level increases the risk of vomiting and aspiration during surgery. An NG tube can help reduce this risk by keeping the stomach empty and minimizing the chance of aspiration.
Choice C rationale: Obtaining consent for surgery is important, but in emergency situations, consent may be implied, or a designated surrogate decision-maker may provide consent. It is not the priority action for the nurse in this scenario.
Choice D rationale: Applying antiembolic stockings is a preventive measure for deep vein thrombosis, but it is not the priority action in this case. Ensuring the client's safety during surgery, specifically by preventing aspiration, takes precedence due to the client's high blood alcohol level.
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