The nurse is explaining the alteration in normal function to a patient recently diagnosed with gastroesophageal reflux disease (GERD). Which etiology contributing to GERD does the nurse include in the teaching session?
Incompetent lower esophageal sphincter.
Decreased pressure within the stomach.
Transient constriction of the lower esophageal sphincter
Prolonged constriction of the upper esophageal sphincter.
The Correct Answer is A
The lower esophageal sphincter (LES) is a muscular ring located between the esophagus and stomach. Its function is to prevent the backflow of stomach acid and contents into the esophagus. In GERD, the LES becomes weak or relaxed, allowing stomach acid to flow back up into the esophagus, leading to symptoms such as heartburn, regurgitation, and chest pain.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Acute adrenal insufficiency, also known as adrenal crisis, is characterized by low levels of adrenal hormones, particularly cortisol. One of the primary manifestations of adrenal insufficiency is electrolyte imbalance, specifically hyponatremia (low sodium) and hyperkalemia (high potassium). Inadequate cortisol levels can lead to impaired sodium reabsorption in the kidneys, resulting in sodium loss and low serum sodium levels.
When the patient receives appropriate therapies for acute adrenal insufficiency, such as administration of glucocorticoids (e.g., hydrocortisone), the cortisol levels begin to normalize. As a result, the impaired sodium reabsorption improves, leading to an increase in serum sodium levels.
Correct Answer is ["250"]
Explanation
To calculate the rate at which the nurse should set the IV pump in mL/hr, we need to determine the infusion rate.
The client is receiving 1 gram of antibiotic in 500 ml of fluid over 2 hours. To find the rate in mL/hr, we divide the total volume (500 ml) by the total time (2 hours):
Rate = Volume / Time Rate = 500 ml / 2 hours Rate = 250 ml/hr
Therefore, the nurse should set the IV pump at a rate of 250 mL/hr.
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