FNP GERD and Peptic Ulcer Practice Questions

This patient's presentation strongly suggests gastroesophageal reflux disease, which is a leading cause of chronic cough even in the absence of classic heartburn. The presence of morning hoarseness and a sour taste are classic extraesophageal manifestations that warrant an empiric trial of a proton pump inhibitor. Option A is incorrect because antihistamine-decongestants target upper airway cough syndrome, which lacks supporting physical findings here. Option B is incorrect as inhaled corticosteroids treat asthma, but the patient's symptoms align more closely with acid reflux. Option C is premature and inappropriate without a clear history of allergic triggers. An empiric trial of acid suppression for at least eight weeks serves as both a diagnostic tool and a therapeutic intervention, safely addressing the underlying pathology while avoiding immediate invasive procedures like endoscopy.

Abrupt discontinuation of proton pump inhibitors after prolonged use, typically defined as longer than four to eight weeks, frequently causes rebound acid hypersecretion. This occurs because the prolonged acid suppression leads to hypergastrinemia, which stimulates the parietal cells to overproduce acid once the medication is suddenly removed. Tapering the dose by reducing it by half, or switching to every-other-day dosing, allows the gastrin levels to normalize gradually and prevents this uncomfortable flare. Stopping abruptly guarantees a resurgence of severe symptoms. Switching directly to an antacid without tapering the primary medication will not adequately suppress the intense rebound hypersecretion. Continuing the medication indefinitely exposes the patient to unnecessary long-term risks, such as hypomagnesemia or bone fractures, when their erosive esophagitis has already fully resolved.

Eradication must be confirmed in all treated patients, typically at least four weeks after completing antibiotics and holding PPIs. Option D is the most appropriate noninvasive method to confirm active infection resolution. Option A is incorrect because IgG antibodies remain positive for years following exposure and cannot distinguish active from past infection. Option B is overly invasive for an asymptomatic patient. Option C incorrectly skips the mandatory proof of eradication.

An 82-year-old female presenting with significant height loss and chronic proton pump inhibitor use is at high risk for osteoporosis and asymptomatic vertebral compression fractures. Option C is correct because a DXA scan is required to quantify her current bone loss and guide targeted therapy, especially since her last scan was 17 years ago. Option A is incorrect because a 1.5-inch height loss is a clinical red flag for vertebral fractures, not a normal part of aging. Option B is incorrect because abruptly stopping omeprazole can cause severe rebound hypersecretion and does not diagnose or treat the underlying bone issue. Option D is incorrect because empiric treatment without a DXA scan is not the standard of care for this presentation, as baseline metrics are needed to monitor treatment efficacy.

This patient has classic biliary colic without signs of acute inflammation or obstruction. The appropriate management for symptomatic cholelithiasis is dietary modification—specifically a low-fat diet to prevent gallbladder contraction—and referral for an elective cholecystectomy. Option A is correct. Option B is wrong because rapid weight loss actually increases gallstone formation and urgent surgery isn't indicated without complications. Option C is incorrect; bile acid sequestrants treat bile acid diarrhea, not gallstones, and endoscopy isn't the primary step. Option D is incorrect because ultrasound is already diagnostic; a CT scan adds unnecessary radiation without changing the management plan.

The combination of vomiting, fever, and watery diarrhea in an older infant strongly points to viral gastroenteritis. Hypertrophic pyloric stenosis typically presents much earlier (3 to 6 weeks) with projectile vomiting and lacks fever or diarrhea. Gastroesophageal reflux causes effortless spitting up without acute infectious signs like fever. Intussusception usually presents with severe colicky pain and currant jelly stools, rather than isolated watery diarrhea and low-grade fever.

It is quite common for patients to experience only a partial response to a standard once-daily proton pump inhibitor. When a patient takes their medication correctly but still has persistent symptoms without any red flags, the recommended step-up therapy is to increase the medication to twice daily dosing. Refer her for an upper gastrointestinal endoscopy is incorrect at this stage because she denies any alarm symptoms and has not yet failed an optimized twice-daily regimen. Switching her to a daily histamine antagonist would be inappropriate because it provides weaker acid suppression than her current therapy. Ordering a barium swallow to assess motility is not a standard intervention for uncomplicated GERD and does not help modify the acid suppression plan. Optimizing the current medication dose is the safest and most effective next step.

The timing of this patient's pain is the key differentiator. Pain from a gastric ulcer is typically exacerbated by food intake, which often leads to food avoidance, early satiety, and subsequent weight loss. Her chronic NSAID use significantly increases this risk. Duodenal peptic ulceration is incorrect because its pain is usually relieved by eating. Gastroesophageal reflux disease primarily causes retrosternal burning rather than localized epigastric pain tied so closely to the immediate postprandial period. Nonulcer functional dyspepsia can cause early satiety, but the presence of weight loss and chronic NSAID use makes mucosal injury highly likely, ruling out a purely functional disorder.

The patient's symptoms of pain awakening him at night and improving with food strongly suggest a duodenal ulcer. The pathogenesis of duodenal ulcers is typically driven by increased acid output and rapid gastric emptying, which overwhelms the duodenal bicarbonate defense. Option A describes a state of hypochlorhydria, which is more commonly associated with gastric ulcers or autoimmune gastritis, not duodenal ulcers. Option C points toward chronic atrophic gastritis, which predisposes to gastric ulcers or cancer rather than duodenal ulcers. Option D describes the pathogenesis of stress ulcers in critically ill patients, not a classic duodenal ulcer in an otherwise healthy outpatient.

Long-term use of proton pump inhibitors significantly reduces gastric acidity, which is necessary for the optimal absorption of several key nutrients. Patients on prolonged therapy are at an increased risk for developing hypomagnesemia and vitamin B12 deficiency, especially after years of continuous use. Checking serum magnesium and B12 levels is directly indicated for this patient to prevent neurological and hematological complications. Proton pump inhibitors do not significantly alter fasting lipid panels or routine liver function tests, making those assessments unnecessary for monitoring medication adverse effects. While potassium and sodium are important electrolytes, they are not specifically depleted by chronic acid suppression therapy in the same way magnesium is. Regular monitoring helps mitigate the silent nutritional deficits associated with chronic therapy.