Nokea
Which of the following is not a cause of tachycardia?
- A. Fever
- B. Exercise
- C. Sympathetic nervous system stimulation
- D. Parasympathetic nervous system stimulation
Correct Answer: D
Rationale: Tachycardia is an increased heart rate, and it can be caused by various factors such as fever, exercise, and sympathetic nervous system stimulation, all of which tend to increase heart rate. However, parasympathetic nervous system stimulation typically slows the heart rate, making it the exception among the choices provided. Thus, parasympathetic nervous system stimulation is not a cause of tachycardia.
You may also like to solve these questions
Which of the following measures is not recommended to prevent pressure ulcers?
- A. Massaging the reddened area with lotion
- B. Using a water or air mattress
- C. Adhering to a schedule for positioning and turning
- D. Providing meticulous skin care
Correct Answer: A
Rationale: Massaging a reddened area can cause further tissue damage by increasing pressure on already compromised skin. The other options, such as using specialized mattresses, adhering to repositioning schedules, and maintaining good skin care, are all recommended strategies to prevent pressure ulcers by reducing pressure and friction on vulnerable areas of the skin.
What do high-pitched gurgles heard over the right lower quadrant indicate?
- A. Increased bowel motility
- B. Decreased bowel motility
- C. Normal bowel sounds
- D. Abdominal cramping
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Palpating the midclavicular line is the correct technique for assessing
- A. Baseline vital signs
- B. Systolic blood pressure
- C. Respiratory rate
- D. Apical pulse
Correct Answer: D
Rationale: Palpating the midclavicular line is the correct technique for assessing the apical pulse. The apical pulse is located at the point of maximal impulse (PMI), which is typically at the fifth intercostal space at the midclavicular line. This technique allows healthcare providers to accurately assess the heart rate and rhythm by listening to the heart sounds directly at this point.
Why is a precise amount of oxygen necessary for a patient with COPD to prevent which complication?
- A. Cardiac arrest related to increased partial pressure of carbon dioxide in arterial blood (PaCO2)
- B. Circulatory overload due to hypervolemia
- C. Respiratory excitement
- D. Inhibition of the respiratory hypoxic stimulus
Correct Answer: D
Rationale: In patients with COPD, the respiratory drive is often stimulated by low oxygen levels. Administering too much oxygen can inhibit this hypoxic drive, leading to respiratory depression and potential respiratory failure. Therefore, it is crucial to carefully regulate the oxygen therapy to prevent the inhibition of the respiratory hypoxic stimulus in COPD patients.
Studies have shown that about 40% of patients fall out of bed despite the use of side rails; this has led to which of the following conclusions?
- A. Side rails are ineffective
- B. Side rails should not be used
- C. Side rails are a deterrent that prevents a patient from falling out of bed
- D. Side rails are a reminder to a patient not to get out of bed
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.