Which of the following resting blood pressures would be considered normal?
130/90 mm Hg
120/80 mmHg
140/95 mm Hg
80/50 mm Hg
The Correct Answer is B
A. 130/90 mm Hg: A blood pressure of 130/90 mm Hg is considered elevated or stage 1 hypertension according to current guidelines. It exceeds the normal systolic and diastolic ranges.
B. 120/80 mm Hg: A reading of 120/80 mm Hg falls within the normal adult blood pressure range. Systolic values less than 120 mm Hg and diastolic values less than 80 mm Hg are considered optimal, making this the standard for healthy resting blood pressure.
C. 140/95 mm Hg: A blood pressure of 140/95 mm Hg indicates stage 2 hypertension. Both systolic and diastolic values are above the normal range, suggesting increased cardiovascular risk.
D. 80/50 mm Hg: While a systolic/diastolic of 80/50 mm Hg may be normal for some individuals, particularly young, healthy adults, it is generally considered low and could indicate hypotension if accompanied by symptoms like dizziness or fainting.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Diastolic:Diastolic pressure is the lower number in a blood pressure reading. It represents the pressure in the arteries when the heart is relaxed between beats, not the higher value.
B. Repolarization:Repolarization refers to the process of cardiac muscle cells returning to a resting electrical state after contraction. It is not directly measured in a blood pressure reading.
C. Systolic:Systolic pressure is the higher number in a blood pressure reading. In this example, 110 mmHg represents the arterial pressure when the ventricles contract, pushing blood into the arteries.
D. Depolarization:Depolarization is the process by which cardiac cells generate an action potential to initiate contraction. It is an electrical event and does not correspond to the numeric values of blood pressure.
Correct Answer is A
Explanation
The thymus is largest during childhood and gradually involutes after puberty, decreasing in size and activity while still producing some T lymphocytes throughout life. Similarly, the pineal gland, which regulates circadian rhythms through melatonin secretion, also undergoes gradual calcification and reduction in size with age. Both organs show age-related shrinkage.
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