Nokea
A patient asks a nurse the following question: Exposure to TB can be best identified with which of the following procedures?
- A. Chest x-ray
- B. Mantoux test
- C. Breath sounds examination
- D. Sputum culture for Mycobacterium tuberculosis
Correct Answer: B
Rationale: The Mantoux test, also known as the tuberculin skin test, is the most appropriate and accurate test to identify exposure to TB. This test involves injecting a small amount of PPD tuberculin under the top layer of the skin, and a positive reaction indicates exposure to the TB bacteria. Choice A, a chest x-ray, is useful for detecting active TB disease but not exposure. Choice C, a breath sounds examination, is not a specific test for TB exposure. Choice D, a sputum culture for Mycobacterium tuberculosis, is used to diagnose active TB infection rather than exposure.
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The client asked about the role of leptin in the body. Which response should the nurse provide?
- A. It increases food intake in clients, thereby promoting obesity.
- B. It assists in the regulation of steroids.
- C. It increases the total fat mass of people who are obese.
- D. It might decrease the total fat mass in the bodies of people who are obese.
Correct Answer: D
Rationale: Leptin is a protein hormone expressed in fat cells that regulates fat cell percentage in the body. It is associated with increased energy expenditure and decreased food intake through hypothalamic control. In obese individuals, there may be insensitivity or resistance to leptin's effects. Leptin influences other hormones like insulin and genetic factors related to fat regulation. Therefore, the correct response is that leptin might decrease total fat mass in obese individuals as it is involved in energy balance and fat regulation. Choices A, B, and C are incorrect because leptin does not increase food intake or promote obesity; it does not assist in the regulation of steroids, and it does not increase total fat mass in people who are obese.
The physician wants to know if a client is tolerating their total parenteral nutrition. Which of the following laboratory tests is likely to be ordered?
- A. triglyceride level
- B. liver function tests
- C. a glucose tolerance test
- D. a complete blood count
Correct Answer: B
Rationale: The liver is crucial in processing nutrients and medications received through total parenteral nutrition. Liver function tests assess various enzymes produced by the liver, including prothrombin time/partial prothrombin time, serum glutamic oxaloacetic and pyruvic transaminases, gamma glutamyl transpeptidase, albumin, and alkaline phosphatase. Monitoring these enzymes can help determine if the liver is functioning properly to metabolize the nutrients from TPN. Triglyceride levels (Choice A) primarily evaluate the body's ability to clear fats, not specifically related to TPN tolerance. A glucose tolerance test (Choice C) is used to diagnose diabetes by measuring blood glucose levels after ingesting a glucose-rich solution, not directly related to TPN tolerance. A complete blood count (Choice D) assesses blood components such as red blood cells, white blood cells, and platelets but does not provide specific information about TPN tolerance.
A nurse assesses an 83-year-old female's venous ulcer for the second time that is located near the right medial malleolus. The wound is exhibiting purulent drainage, and the patient has limited mobility in her home. Which of the following is the best course of action?
- A. Encourage warm water soaks to the right foot.
- B. Notify the case manager of the purulent drainage.
- C. Determine the patient's pulse in the right ankle.
- D. Recommend increased activity to reduce the purulent drainage.
Correct Answer: A
Rationale: The correct course of action is to encourage warm water soaks to the right foot. This can help promote wound healing and alleviate discomfort. Before recommending increased activity or notifying additional team members, it is crucial to assess arterial blood flow by determining the patient's pulse in the right ankle. Poor arterial blood flow could worsen the condition, making increased activity inappropriate. While notifying the case manager of purulent drainage is important, addressing the wound care directly should be the primary focus at this stage.
Which of the following diseases or conditions is least likely to be associated with an increased potential for bleeding?
- A. metastatic liver cancer
- B. gram-negative septicemia
- C. pernicious anemia
- D. iron-deficiency anemia
Correct Answer: C
Rationale: Pernicious anemia is least likely to be associated with an increased potential for bleeding. Pernicious anemia results from vitamin B12 deficiency due to a lack of intrinsic factor, leading to faulty absorption from the gastrointestinal tract. While pernicious anemia can lead to other health issues, bleeding tendencies are not a primary concern. Metastatic liver cancer (choice A) can cause liver dysfunction leading to decreased synthesis of clotting factors, increasing the risk of bleeding. Gram-negative septicemia (choice B) can lead to disseminated intravascular coagulation (DIC) causing excessive bleeding. Iron-deficiency anemia (choice D) can result in microcytic hypochromic red blood cells, which can impair oxygen transport and lead to tissue hypoxia, but it is not directly associated with a significant potential for bleeding.
A violation of a patient's confidentiality occurs if two nurses are discussing client information in which of the following scenarios?
- A. With a physical therapist treating the patient
- B. With a social worker planning for discharge
- C. With another nurse on duty to plan for break time
- D. In the hallway outside the patient's room
Correct Answer: D
Rationale: The correct answer is 'In the hallway outside the patient's room.' Discussing client information in a public area like a hallway can potentially breach patient confidentiality as it increases the risk of unauthorized individuals overhearing sensitive information. Choices A, B, and C involve discussing client information with other healthcare professionals in appropriate settings, which are more likely to maintain patient confidentiality compared to discussing in a public space like a hallway. Option D is the correct choice because it highlights a scenario where patient information is at higher risk of exposure to unauthorized individuals, hence violating patient confidentiality.