ATI LPN
ATI Medical Surgical Proctored Exam 2019 Quizlet
1. When assessing a client reporting severe pain in the right lower quadrant of the abdomen, which sign would most likely indicate appendicitis?
- A. Rebound tenderness at McBurney's point.
- B. Positive Murphy's sign.
- C. Rovsing's sign.
- D. Cullen's sign.
Correct answer: A
Rationale: Rebound tenderness at McBurney's point is a classic sign of appendicitis. This sign indicates peritoneal irritation, a common feature of appendicitis. McBurney's point is located in the right lower quadrant of the abdomen and is a focal point for assessing tenderness. Positive Murphy's sign is associated with cholecystitis, not appendicitis. Rovsing's sign is elicited by palpation of the left lower quadrant resulting in pain in the right lower quadrant, also suggestive of appendicitis. Cullen's sign is associated with acute pancreatitis and manifests as periumbilical ecchymosis.
2. For a patient with asthma, what is the primary purpose of prescribing montelukast?
- A. Relieve acute bronchospasm
- B. Prevent asthma attacks
- C. Thin respiratory secretions
- D. Suppress cough
Correct answer: B
Rationale: Montelukast, a leukotriene receptor antagonist, is primarily prescribed to prevent asthma attacks. It works by reducing inflammation and bronchoconstriction in the airways, thereby helping to control asthma symptoms and prevent exacerbations.
3. A 45-year-old woman presents with fatigue, pruritus, and jaundice. Laboratory tests reveal elevated bilirubin and alkaline phosphatase levels. Imaging shows a normal common bile duct but dilated intrahepatic bile ducts. What is the most likely diagnosis?
- A. Primary biliary cirrhosis
- B. Primary sclerosing cholangitis
- C. Gallstones
- D. Pancreatic cancer
Correct answer: A
Rationale: Based on the symptoms of fatigue, pruritus, and jaundice, along with elevated bilirubin and alkaline phosphatase levels, and imaging findings of a normal common bile duct but dilated intrahepatic bile ducts, the most likely diagnosis is primary biliary cirrhosis. Primary sclerosing cholangitis presents with different imaging findings, often showing strictures and beading of the bile ducts. Gallstones typically cause obstruction in the biliary system, leading to different symptoms and imaging findings. Pancreatic cancer would present with different clinical features and imaging characteristics.
4. When should surgical correction of hypospadias typically occur for a newborn infant as advised by the nurse?
- A. Repair should be done within one month to prevent bladder infections.
- B. Repairs should typically be done before the child is potty-trained.
- C. Delaying the repair until school age reduces castration fears.
- D. To form a proper urethra repair, it should be done after sexual maturity.
Correct answer: B
Rationale: Surgical repair of hypospadias is recommended to be performed before the child is potty-trained to prevent complications. Early correction helps in achieving better outcomes and reduces the risk of issues related to urination and development of the genitalia.
5. Which of the following statements about Helicobacter pylori (H. pylori) is false?
- A. H. pylori does not invade the gastric or duodenal epithelium
- B. H. pylori stimulates gastric acid secretion
- C. Eradication of H. pylori prevents adenocarcinoma of the stomach
- D. H. pylori produces a urease that splits urea into ammonia and CO2
Correct answer: C
Rationale: H. pylori is known to reside in the mucus layer of the stomach and does not invade the epithelium. It produces urease that splits urea into ammonia and CO2. This action helps in neutralizing the acidic environment and allows H. pylori to survive. Additionally, urease activity can be detected in diagnostic tests for H. pylori. The stimulation of gastric acid secretion and disruption of the protective mucus layer are mechanisms by which H. pylori promotes injury. While eradicating H. pylori infection has been associated with a decreased risk of developing gastric cancer, it does not prevent adenocarcinoma of the stomach entirely.
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