Nokea
The nurse is caring for a client with nursing diagnosis of ineffective tissue perfusion. Which area of the heart would the nurse anticipate being compromised?
- A. Right atrium
- B. Pulmonary artery
- C. Right ventricle
- D. Aorta
Correct Answer: C
Rationale: There are four chambers to the heart. The right and left ventricles are the heart's major pumping chamber. The right ventricle pumps to the lungs to oxygenate the blood. The left ventricle pumps blood to the tissues and cells. The pulmonary artery and aorta are not of the heart.
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The following clients are in need of exercise electrocardiography. Which client would the nurse indicate as most appropriate for a drug-induced stress test?
- A. A 48-year-old policemen with history of knee replacement 4 years ago
- B. A 68-year-old housewife with history of osteoporosis
- C. A 72-year-old retired janitor obtaining a cardiac baseline
- D. A 55-year-old recovering from a fall and broken femur
Correct Answer: D
Rationale: An exercise electrocardiography or stress test monitors the electrical activity of the heart while the client walks on a treadmill. If a client has a sedentary lifestyle or physical disability, cardiac medications may be administered to stress the heart similar to activity. Even though the client is middle aged at 55 years old, the client is recovering from a broken femur thus would be unable to have vigorous exercise. None of the other clients have a history which precludes them from exercise electrocardiography.
The nurse is discharging a client after a cardiac catheterization. What would the nurse include in the discharge teaching?
- A. Eat only soft foods for the next 12 hours.
- B. Report any numbness, tingling, or sharp pain in the extremity.
- C. Restrict your intake of water until the dye is out of the body.
- D. Move around whenever the client feels like getting up.
Correct Answer: B
Rationale: Instructions for the client and family include: Keep the extremity straight for several hours and avoid movement; Report any warm, wet feeling that may indicate oozing blood, numbness, tingling, or sharp pain in the extremity; Drink a large volume of fluid to relieve thirst and promote the excretion of the dye. There is no need to eat only soft foods after a cardiac catheterization.
One of the students asks what the consequences of uncorrected, left-sided heart failure would be. What would be the nursing instructor's best response?
- A. Distention of the jugular vein
- B. Effort to lie down to breathe
- C. Right-sided heart failure
- D. Blood congestion in neck veins
Correct Answer: C
Rationale: If uncorrected, left-sided heart failure is followed by right-sided heart failure because the circulatory system is a continuous loop. With left-sided congestive heart failure, auscultation reveals a crackling sound, wheezes, and gurgles. Wet lung sounds are accompanied by dyspnea and an effort to sit up to breathe. If the right side of the heart fails to pump efficiently, blood becomes congested in the neck veins, and the nurse may inspect the distention of external jugular vein.
Which suggestion can the nurse provide to an older adult client to reduce the symptoms associated with sarcopenia?
- A. Maintain hydration.
- B. Avoid heavy lifting.
- C. Practice brisk walking.
- D. Limit the use of caffeine.
Correct Answer: C
Rationale: Sarcopenia refers to changes in composition of muscle tissue that can occur in aging because of deconditioning; therefore, increasing daily exercise helps to improve muscle strength, including the heart. Maintaining hydration is important for a client who requires cardiac catheterization to flush the dye used during the procedure from the system and is not an intervention supported by evidence-based practice guidelines for the client who experiences sarcopenia. Heavy lifting is discouraged following cardiac catheterization; however, avoiding lifting is not an activity that reduces symptoms associated with sarcopenia. The nurse discourages the use of caffeine for clients who experience tachycardia; however, this is not an appropriate suggestion to reduce the symptoms associated with sarcopenia.
The nurse is caring for a client with an elevated blood pressure and no previous history of hypertension. At 0900, the blood pressure was 158/90 mm Hg. At 0930, the blood pressure is 142/82 mm Hg. The nurse is most correct when relating the fall in blood pressure to which structure?
- A. Chemoreceptors
- B. Sympathetic nerve fibers
- C. Baroreceptors
- D. Vagus nerve
Correct Answer: C
Rationale: Baroreceptors sense pressure in nerve endings in the walls of the atria and major blood vessels. The baroreceptors respond accordingly to raise or lower the pressure. Chemoreceptors are sensitive to pH, CO2, and O2 in the blood. Sympathetic nerve fibers increase the heart rate. The vagus nerve slows the heart rate.