ATI LPN
ATI Learning System PN Medical Surgical Final Quizlet
1. A patient with a diagnosis of deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the heparin therapy?
- A. Prothrombin time (PT)
- B. Partial thromboplastin time (PTT)
- C. Bleeding time
- D. Platelet count
Correct answer: B
Rationale: The correct answer is B: Partial thromboplastin time (PTT). Heparin affects the intrinsic pathway of the coagulation cascade, which is reflected by changes in the PTT. Monitoring the PTT helps ensure that the patient's blood is within the desired therapeutic range and prevents complications related to clotting or bleeding. Prothrombin time (PT) primarily assesses the extrinsic pathway and is not as sensitive to heparin therapy. Bleeding time and platelet count are not specific tests for monitoring the effectiveness of heparin therapy in DVT.
2. A 28-year-old woman presents with abdominal pain, diarrhea, and weight loss. She has a history of recurrent mouth ulcers and a perianal fistula. What is the most likely diagnosis?
- A. Ulcerative colitis
- B. Irritable bowel syndrome
- C. Crohn's disease
- D. Diverticulitis
Correct answer: C
Rationale: The combination of symptoms including recurrent mouth ulcers, perianal fistula, abdominal pain, diarrhea, and weight loss is characteristic of Crohn's disease. These extra-intestinal manifestations, along with the gastrointestinal symptoms, point towards Crohn's disease rather than ulcerative colitis, irritable bowel syndrome, or diverticulitis.
3. A client is admitted with suspected meningitis. Which assessment finding requires immediate intervention?
- A. Headache.
- B. Fever.
- C. Nuchal rigidity.
- D. Seizures.
Correct answer: D
Rationale: Seizures in a client with suspected meningitis indicate increased intracranial pressure or other complications requiring immediate intervention. Seizures can lead to further neurological damage and need prompt management to prevent adverse outcomes. Therefore, addressing seizures promptly is crucial in the care of a client with suspected meningitis.
4. When a client expresses, 'I don't know how I will go on' while discussing feelings related to a recent loss, the nurse remains silent. What is the most likely reason for the nurse's behavior?
- A. The nurse is indicating disapproval of the statement.
- B. The nurse is showing respect for the client's loss.
- C. Silence is mirroring the client's sadness.
- D. Silence enables the client to contemplate what was expressed.
Correct answer: D
Rationale: In therapeutic communication, silence can offer the client an opportunity to process their emotions and thoughts. By remaining silent, the nurse provides a space for the client to reflect on their own words, facilitating deeper exploration and understanding of their feelings.
5. A client with liver failure is at an increased risk of bleeding due to the inability to synthesize prothrombin in the liver. What factor most likely contributes to this loss of function?
- A. Alterations in glucose metabolism
- B. Retention of bile salts
- C. Inadequate production of albumin by hepatocytes
- D. Inability of the liver to use vitamin K
Correct answer: D
Rationale: The correct answer is D. The liver's inability to use vitamin K is the most likely factor contributing to the loss of prothrombin synthesis in liver failure. Vitamin K is essential for the synthesis of prothrombin, a crucial clotting factor. In liver failure, impaired utilization of vitamin K leads to decreased production of prothrombin, increasing the risk of bleeding in affected individuals.
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