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Calculate the heart rate based on this rhythm strip.

100

Answer and Explanation

The Correct Answer is A

To calculate the heart rate based on the rhythm strip, we can use the "six-second method".

Count the number of QRS complexes in a six-second strip.

Multiply this number by 10.

In this case, it appears that there are approximately 6 QRS complexes in a six-second strip.

Therefore, the heart rate is approximately 6 x 10 = 60 beats per minute.

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Free Nursing Study Resources

Correct Answer is C

Explanation

A) "These tests will enable the provider to determine the heart structure and mobility of the heart valves." This statement is incorrect because cardiac enzyme tests, including troponin levels, do not assess heart structure or valve mobility. Imaging studies like echocardiograms are typically used for evaluating heart structure and function.

B) "Cardiac enzymes assist in diagnosing the presence of congestive heart failure." While cardiac enzymes can provide some information about heart function, they are not specifically used to diagnose congestive heart failure. The primary role of cardiac enzymes, particularly troponin, is in diagnosing myocardial injury, such as an acute myocardial infarction.

C) "Cardiac enzymes like troponin shows there has been damage to the heart tissues and muscle." This statement accurately reflects the purpose of measuring troponin levels. Troponin is a protein released into the bloodstream when heart muscle cells are damaged, making it a crucial biomarker for diagnosing an acute myocardial infarction.
D) "Cardiac enzymes will identify the exact location of the MI." This statement is misleading. While troponin levels can indicate that damage has occurred, they do not provide information about the specific location of the myocardial infarction. Other imaging techniques, such as an angiogram, are needed to determine the exact location of blockages or damage.

A. Within the expected reference range B. Elevated C. Stage 2 hypertension D. Stage 1 hypertension

Correct Answer is D

Explanation

Correct Answer: D. Stage 1 hypertension

Rationales

A. Within the expected reference range.
Normal blood pressure is defined as a systolic less than 120 mm Hg and a diastolic less than 80 mm Hg. Since this client’s reading is 130/82 mm Hg, it exceeds the normal range, so it cannot be classified as expected.

B. Elevated.
Elevated blood pressure is defined as systolic 120–129 mm Hg and diastolic less than 80 mm Hg. While the systolic pressure of 130 is only slightly above this range, the diastolic value of 82 exceeds the “less than 80” requirement. Therefore, this reading does not qualify as elevated.

C. Stage 2 hypertension.
Stage 2 hypertension is defined as systolic pressure of 140 mm Hg or higher or diastolic pressure of 90 mm Hg or higher. This client’s values do not meet those thresholds, so stage 2 does not apply.

D. Stage 1 hypertension.
Stage 1 hypertension is defined as systolic 130–139 mm Hg or diastolic 80–89 mm Hg. Since the client’s reading is 130/82 mm Hg, both values fall within this category, making stage 1 hypertension the correct classification.

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Calculate the heart rate based on this rhythm strip.

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is C

Explanation

A nurse is providing teaching to a client who has a family history of hypertension. The nurse should inform the client that his blood pressure of 130/82 mm Hg places him in which of the following categories?

Correct Answer is D

Explanation

Correct Answer: D. Stage 1 hypertension

Rationales

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