Nokea
The nurse is teaching a health class at the local community center. What body system would the nurse explain regulates arterial blood pressure?
- A. Cardiovascular system
- B. Immune system
- C. Lymphatic system
- D. Autonomic nervous system
Correct Answer: D
Rationale: The autonomic nervous system, the kidneys, and various endocrine glands regulate arterial pressure. The cardiovascular system, immune system, and lymphatic systems do not regulate arterial blood pressure.
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The nurse would screen a client from which ethnic background for hypertension at an early age?
- A. Asian population
- B. Japanese population
- C. Mexican population
- D. Population of African descent
Correct Answer: D
Rationale: The population of African descent is at the highest risk for development of hypertension. The other ethnic backgrounds have a lower risk.
Which of the following nursing diagnoses is the nurse most correct to choose when caring for a client with long-standing hypertension?
- A. Impaired Gas Exchange
- B. Activity Intolerance
- C. Altered Tissue Perfusion
- D. Risk for Decreased Cardiac Output
Correct Answer: C
Rationale: The nurse is most correct in choosing Altered Tissue Perfusion for the client with long-standing hypertension. In hypertension, the extra work increases the size of the heart muscle. Eventually, the heart cannot meet the body's metabolic needs limiting the perfusion to the tissues. Impaired Gas Exchange, Activity Intolerance, and a Risk for Decreased Cardiac Output may occur due to the ineffective perfusion.
The nurse is working on a clinical research study, obtaining data evaluating central aortic systolic pressure and brachial arm systolic pressure. The client notes a difference in the readings. Which response by the nurse is most accurate?
- A. The difference is due to machine calibration.
- B. The difference is due to the location of pressure measurement.
- C. The difference is due to the discomfort caused by the measurement procedure.
- D. The difference is due to the constrictive force on the arteries when the measurement is taken.
Correct Answer: B
Rationale: Central aortic systolic pressure results, reflecting pressure at the root of the aorta, can be documented as $30 \mathrm{~mm} \mathrm{Hg}$ lower than when corresponding results obtained at the brachial arm. The differences are not due to machine calibration, discomfort, or constriction of the arteries.
The nurse is caring for a client with malignant hypertension. What would be an appropriate nursing intervention for this client?
- A. Monitor the client's mental and emotional status every hour.
- B. Monitor the blood pressure (BP) every few minutes by applying an automatic BP recording machine.
- C. Monitor the client's blood sugar every hour.
- D. Monitor the client's temperature every few minutes.
Correct Answer: B
Rationale: The nurse applies an automatic BP recording machine to the arm to measure the BP every few minutes. The nurse also keeps emergency equipment and drugs ready in case complications develop. Monitoring the client's mental and emotional status, blood sugar, or temperature every few minutes will not reflect the sudden rise in BP of a client with malignant hypertension.
Which of the following is the nurse most correct to recognize as a direct effect of client hypertension?
- A. Renal dysfunction resulting from atherosclerosis
- B. Anemia resulting from bone marrow suppression
- C. Hyperglycemia resulting from insulin receptor resistance
- D. Emphysema related to poor gas exchange
Correct Answer: A
Rationale: The nurse is most correct to realize high blood pressure damages the arterial vascular system and accelerates atherosclerosis. The effect of the atherosclerosis impairs circulation to the kidney, resulting in renal failure. Neither anemia, hyperglycemia, nor emphysema occurs as a direct effect of hypertension.