A nurse is attending a seminar about blood flow through the heart.
The hospital MD is conducting an inservice about blood flow in veins and arteries.
In the circulatory system, generally,.
Veins carry oxygenated blood away from the heart, while arteries carry deoxygenated blood toward the heart.
Veins carry deoxygenated blood away from the heart, while arteries carry oxygenated blood toward the heart.
Veins carry deoxygenated blood toward the heart, while arteries carry oxygenated blood away from the heart.
Veins carry oxygenated blood toward the heart, while arteries carry deoxygenated blood away from the heart.
The Correct Answer is C
Choice A rationale:
This statement is incorrect. Veins do not carry oxygenated blood away from the heart, and arteries do not carry deoxygenated blood toward the heart.
Choice B rationale:
This statement is incorrect. While it is true that veins carry deoxygenated blood, they carry it toward the heart, not away from it. Similarly, arteries carry oxygenated blood, but they carry it away from the heart, not toward it.
Choice C rationale:
This statement is correct. In the circulatory system, veins carry deoxygenated blood toward the heart, while arteries carry oxygenated blood away from the heart.
Choice D rationale:
This statement is incorrect. Veins do not carry oxygenated blood toward the heart, and arteries do not carry deoxygenated blood away from the heart.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
Tachycardia, or a rapid heart rate, is a common early sign of hypovolemic shock as the body tries to compensate for the decreased blood volume by increasing the heart rate.
Choice B rationale:
Diminished urine output is a sign of hypovolemic shock, but it is not typically an early sign.
Choice C rationale:
Cold, clammy skin is a sign of hypovolemic shock, but it is not typically an early sign.
Choice D rationale:
Unconsciousness is a late sign of hypovolemic shock, indicating severe blood loss and inadequate perfusion to the brain.
Correct Answer is B
Explanation
Choice A rationale:
Urine specific gravity 1.020 is within the normal range (1.005-1.030), so it does not indicate fluid volume deficit.
Choice B rationale:
Urine output 15 mL/hr is less than the normal minimum of 30 mL/hr, indicating fluid volume deficit.
Choice C rationale:
Hct 43% is within the normal range (38.8-50.0 for men, 34.9-44.5 for women), so it does not indicate fluid volume deficit.
Choice D rationale:
BUN 12 mg/dL is within the normal range (7-20 mg/dL), so it does not indicate fluid volume deficit.
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