ATI LPN
ATI Learning System PN Medical Surgical Final Quizlet
1. What is the primary cause of jaundice in a client with liver cirrhosis?
- A. Decreased bile production
- B. Increased bilirubin levels
- C. Hepatic inflammation
- D. Portal hypertension
Correct answer: B
Rationale: Jaundice in a client with liver cirrhosis is primarily caused by increased bilirubin levels. In liver cirrhosis, impaired liver function leads to the accumulation of bilirubin in the blood, resulting in jaundice. Bilirubin is a yellow pigment produced from the breakdown of red blood cells, and its elevation is a common manifestation of liver dysfunction. Choices A, C, and D are incorrect. While decreased bile production can contribute to jaundice, in liver cirrhosis, the key factor is the buildup of bilirubin due to liver dysfunction, not a decrease in bile production. Hepatic inflammation and portal hypertension are associated with liver cirrhosis but are not the primary causes of jaundice in this context.
2. In evaluating a 10-year-old child with meningitis suspected of having diabetes insipidus, which finding is indicative of diabetes insipidus?
- A. Decreased urine specific gravity.
- B. Elevated urine glucose.
- C. Decreased serum potassium.
- D. Increased serum sodium.
Correct answer: A
Rationale: Diabetes insipidus is characterized by the kidneys' inability to concentrate urine, leading to decreased urine specific gravity. This results in the excretion of large volumes of dilute urine, causing a decrease in urine specific gravity. Therefore, when evaluating a suspected case of diabetes insipidus, a finding of decreased urine specific gravity is indicative of this condition.
3. The mental health nurse observes that a female client with delusional disorder carries some of her belongings with her because she believes that others are trying to steal them. Which nursing action will promote trust?
- A. Explain that distrust is related to feeling anxious.
- B. Initiate short, frequent contacts with the client.
- C. Explain that these beliefs are related to her illness.
- D. Offer to keep the belongings at the nurse's desk.
Correct answer: B
Rationale: Initiating short, frequent contacts with the client is the most appropriate action to promote trust. This approach helps build trust and rapport, addressing the client's need for security. By maintaining regular contact, the nurse can provide reassurance and support, which can help alleviate the client's anxiety related to her delusional beliefs. Choice A does not directly address the client's need for trust and security. Choice C focuses on the client's illness but does not actively address building trust. Choice D, offering to keep the belongings at the nurse's desk, may not be well-received by the client and could potentially worsen her anxiety and distrust.
4. A 45-year-old woman presents with fatigue, weight gain, and constipation. Laboratory tests reveal high TSH and low free T4 levels. What is the most likely diagnosis?
- A. Hypothyroidism
- B. Hyperthyroidism
- C. Thyroiditis
- D. Thyroid cancer
Correct answer: A
Rationale: The combination of high TSH and low free T4 levels is consistent with hypothyroidism, which matches the patient's symptoms of fatigue, weight gain, and constipation. In hypothyroidism, the thyroid gland does not produce enough thyroid hormones, leading to a decrease in metabolic rate and resulting in these clinical findings.
5. A client with a history of deep vein thrombosis (DVT) is receiving warfarin (Coumadin). Which laboratory value indicates a therapeutic effect of the medication?
- A. INR of 2.5.
- B. PTT of 45 seconds.
- C. Hemoglobin of 12 g/dL.
- D. Platelet count of 150,000/mm³.
Correct answer: A
Rationale: An INR (International Normalized Ratio) of 2.5 indicates a therapeutic level for clients receiving warfarin (Coumadin) to prevent thromboembolism. It is essential to monitor INR levels regularly when on warfarin therapy to ensure that the blood's ability to clot is within the desired range to prevent both clotting and excessive bleeding.
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