Nokea
Autoimmunity is defined as a phenomenon involving which of the following?
- A. Production of endotoxins that destroy B
- B. Overproduction of reagin antibody
- C. Depression of the immune response
- D. Inability to differentiate self from nonself
Correct Answer: D
Rationale: Autoimmunity is when the immune system mistakenly attacks the body's own cells. Choice D is correct because it reflects this key feature - the inability to differentiate self from nonself. This leads to the immune system targeting healthy tissues. Choices A, B, and C are incorrect as they do not accurately describe autoimmunity. Choice A refers to endotoxins destroying B cells, which is not the definition of autoimmunity. Choice B mentions overproduction of reagin antibody, which is not related to autoimmunity. Choice C is incorrect as autoimmunity does not involve depression of the immune response but rather an inappropriate immune response.
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The nurse is developing a teaching plan for a patient. Which of the following is a modifiable risk factor for the development of hypertension? i.Race iv.Sedentary lifestyle ii.High cholesterol v.Age iii.Cigarette smoking
- A. 1 and 2
- B. 2, 3, 4 and 5
- C. 2, 3 and 4
- D. All of the above
Correct Answer: C
Rationale: The correct answer is C: 2, 3, and 4. High cholesterol, cigarette smoking, and a sedentary lifestyle are modifiable risk factors for developing hypertension. High cholesterol can lead to atherosclerosis, increasing blood pressure. Smoking can constrict blood vessels, raising blood pressure. Sedentary lifestyle can lead to obesity and overall poor cardiovascular health, contributing to hypertension. Race and age are non-modifiable risk factors. Choice A is incorrect because it includes race, a non-modifiable factor. Choice B is incorrect because it includes age, which is also non-modifiable. Choice D is incorrect because it includes all factors, including non-modifiable ones.
Critical thinking is an essential component in all phases of the nursing process. What question might be used to facilitate critical thinking during outcome identification and planning?
- A. How do I best cluster these data and cues to identify problems?
- B. What problems require my immediate attention or that of the team?
- C. What major defining characteristics are present for a nursing diagnosis?
- D. How do I document care accurately and legally?
Correct Answer: B
Rationale: The correct answer is B because during outcome identification and planning, it is crucial to prioritize problems that require immediate attention to ensure patient safety and well-being. By asking what problems need immediate attention, nurses can focus on addressing urgent issues first. Choice A focuses on data clustering for problem identification, choice C is related to defining characteristics for nursing diagnoses, and choice D pertains to documentation, which are important but not directly related to prioritizing immediate problems.
Other signs of hypovolemia includes all of the following except:
- A. Dry mucous membranes and soft eyeballs
- B. Increased hematocrit and hemoglobin
- C. Decreased pulse rate and widened pulse pressure
- D. Increased lethargy and confusion
Correct Answer: C
Rationale: The correct answer is C because decreased pulse rate and widened pulse pressure are not signs of hypovolemia. In hypovolemia, the body tries to compensate by increasing the heart rate and narrowing the pulse pressure to maintain adequate blood flow. A is incorrect as dry mucous membranes and soft eyeballs are signs of dehydration. B is incorrect as increased hematocrit and hemoglobin are indicators of hemoconcentration in hypovolemia. D is incorrect as increased lethargy and confusion can be seen in severe hypovolemia due to poor perfusion of vital organs.
Emil, just had a thyroidectomy this morning. Upon awakening, he complains of circumoral tingling, has a positive Chvostek’s sign and positive Trousseau’s sign. Nurse Ofel assesses this to be an indication of:
- A. Overstimulation of the parathyroid hormone
- B. Insufficient iodine intake
- C. inadvertent removal of the parathyroid
- D. Overuse of radioactive iodine gland
Correct Answer: A
Rationale: Rationale: The correct answer is A, overstimulation of the parathyroid hormone. After a thyroidectomy, there is a risk of unintentional damage to the parathyroid glands, leading to hypoparathyroidism. Circumoral tingling, positive Chvostek’s sign, and positive Trousseau’s sign are classic signs of hypocalcemia resulting from parathyroid insufficiency. Choices B, C, and D are incorrect because they do not explain the specific symptoms observed in Emil, which are indicative of low calcium levels due to parathyroid dysfunction.
The nurse is teaching a client who will be discharged soon how to change a sterile dressing on the right leg. During the teaching session, the nurse notices redness, swelling and induration at the wound site. What do these signs suggest?
- A. Infection
- B. Evisceration
- C. Dehiscence
- D. Hemorrhage
Correct Answer: A
Rationale: The presence of redness, swelling, and induration at the wound site are indicative of infection. Redness and swelling suggest inflammation, while induration indicates tissue hardening and can be a sign of infection spreading. Infection can delay healing and lead to complications if not treated promptly. Evisceration refers to wound opening with protrusion of internal organs, not indicated by the symptoms. Dehiscence is the partial or complete separation of wound layers, not represented by the symptoms. Hemorrhage involves excessive bleeding, which is not described in the scenario. Therefore, choice A is correct as it aligns with the signs observed and is the most appropriate response for the situation.