The normal PR interval is:
0.04-0.20 seconds
0.12-0.20 seconds
Less than half the R-to-R ratio
0.08-0.10 seconds
The Correct Answer is B
Choice A reason: A PR interval of 0.04-0.20 seconds is too broad and includes values that are both below and above the normal range.
Choice B reason: A PR interval of 0.12-0.20 seconds is the established normal range for adults, reflecting proper conduction through the AV node.
Choice C reason: The PR interval being less than half the R-to-R ratio is not a standard measurement for PR intervals and does not provide a specific range.
Choice D reason: A PR interval of 0.08-0.10 seconds is below the normal range and may suggest pre-excitation or an AV nodal (junctional) rhythm.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Hyperkalemia is a common electrolyte imbalance in prerenal AKI due to decreased kidney function and the inability to excrete potassium.
Choice B reason: Hypernatremia is not typically expected in prerenal AKI unless there is an associated condition causing increased sodium retention.
Choice C reason: Hypercalcemia is not commonly associated with prerenal AKI.
Choice D reason: Hypophosphatemia is less likely in prerenal AKI; hyperphosphatemia is more common due to decreased filtration of phosphate.
Correct Answer is C
Explanation
Choice A reason: A negative urine dipstick for nitrites is more indicative of a lack of bacterial infection and is not directly related to glomerulonephritis.
Choice B reason: While the absence of pain or burning with voiding is positive, it does not specifically indicate the resolution of glomerulonephritis.
Choice C reason: The resolution of periorbital and peripheral edema is a sign that the treatment for glomerulonephritis has been effective, as edema is a common symptom of this condition.
Choice D reason: A decrease in the anti-streptolysin-O (ASO) titer may indicate a response to treatment for a streptococcal infection, but it is not the most direct indicator of effective treatment for glomerulonephritis.
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
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
