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. The client has acute kidney injury (AKI). Which assessment finding requires immediate intervention?
- A. Urine output of 50 ml in the last hour.
- B. Serum potassium of 6.2 mEq/L.
- C. Blood pressure of 150/90 mm Hg.
- D. Serum creatinine of 2.5 mg/dL.
Correct answer: B
Rationale: An elevated serum potassium level of 6.2 mEq/L in a client with AKI can lead to life-threatening cardiac arrhythmias, necessitating immediate intervention. Hyperkalemia is a serious complication in AKI as impaired kidney function can result in the accumulation of potassium in the blood, posing a risk of cardiac arrest. Prompt treatment to lower potassium levels is crucial to prevent cardiac complications in this situation.
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. A primipara at 38-weeks gestation is admitted to labor and delivery for a biophysical profile (BPP). The nurse should prepare the client for what procedures?
- A. Chorionic villus sampling under ultrasound.
- B. Amniocentesis and fetal monitoring.
- C. Ultrasonography and nonstress test.
- D. Oxytocin challenge test and fetal heart rate monitoring.
Correct answer: C
Rationale: A biophysical profile (BPP) is a prenatal test that assesses the well-being of the fetus. It typically includes ultrasonography to evaluate fetal movements, muscle tone, breathing movements, and amniotic fluid volume. Additionally, a nonstress test is performed to monitor the fetal heart rate in response to its movements. These tests help in determining the overall health and viability of the fetus, making them essential components of prenatal care for assessing fetal well-being.
5. A patient with schizophrenia is prescribed olanzapine. What is an important side effect for the healthcare provider to monitor?
- A. Hypertension
- B. Weight gain
- C. Hypoglycemia
- D. Bradycardia
Correct answer: B
Rationale: The correct answer is B: Weight gain. Olanzapine, an atypical antipsychotic, is known to cause significant weight gain and metabolic syndrome. It is crucial for healthcare providers to closely monitor patients for these side effects to prevent complications and provide appropriate interventions.
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