Nokea
What is one characteristic of human immunodeficiency virus (HIV)?
- A. The presence of circulating antibodies that neutralize HIV is evidence of exposure to HIV.
- B. HIV replication occurs intracellularly.
- C. HIV integrates its genetic material into the host cell's DNA.
- D. DNA replication is irrelevant to HIV.
Correct Answer: C
Rationale: The correct answer is C. HIV integrates its genetic material into the host cell's DNA. The virus uses the enzyme reverse transcriptase to make a DNA copy of its RNA, which is then inserted into the genetic material of the infected cell. Choice A is incorrect because the presence of antibodies does not indicate immunity to HIV but rather exposure to the virus. Choice B is incorrect as HIV replication occurs intracellularly, inside the host cell. Choice D is irrelevant to the characteristics of HIV.
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A 93-year-old female with a history of Alzheimer's Disease gets admitted to an Alzheimer's unit. The patient has exhibited signs of increased confusion and limited stability with gait. Moreover, the patient is refusing to use a w/c. Which of the following is the most appropriate course of action for the nurse?
- A. Recommend the patient remain in her room at all times.
- B. Recommend family members bring pictures to the patient's room.
- C. Recommend a speech therapy consult to the doctor.
- D. Recommend the patient attempt to walk pushing the w/c for safety.
Correct Answer: B
Rationale: For a 93-year-old female with Alzheimer's Disease exhibiting signs of increased confusion and limited stability with gait, recommending family members to bring pictures to the patient's room is the most appropriate course of action. Visual stimulation in the form of pictures may help decrease signs of confusion and provide comfort to the patient. Option A is incorrect as isolating the patient in her room at all times may worsen her condition by further limiting stimulation and interaction. Option C is incorrect as speech therapy may not directly address the current issues of confusion and gait instability. Option D is incorrect as pushing a wheelchair may not be safe for the patient if she is refusing to use it, potentially leading to falls or further distress.
At what age will vision be 20/20 in children?
- A. 4 years old
- B. 5 years old
- C. 6 years old
- D. 7 years old
Correct Answer: C
Rationale: The correct answer is 6 years old. At this age, children typically have the potential for 20/20 vision. This is considered the standard age for achieving optimal vision clarity. Choices A, B, and D are incorrect as they are not typically associated with the age at which children achieve 20/20 vision.
Clomiphene is prescribed for a female client to treat infertility. The nurse is providing information to the client and her spouse about the medication and provides the couple with which information?
- A. If the oral tablets are not successful, the medication will be administered intravenously.
- B. The couple should engage in coitus at least every other day during treatment.
- C. The physician should be notified immediately if breast engorgement occurs.
- D. Multiple births occur in a small percentage of clomiphene-facilitated pregnancies.
Correct Answer: D
Rationale: The correct answer is that multiple births (usually twins) occur in a small percentage (8% - 10%) of clomiphene-facilitated pregnancies. The couple should be informed about this potential outcome. Clomiphene is available in 50-mg tablets for oral use; there is no intravenous form of the medication. Breast engorgement is a common side effect of clomiphene that typically resolves after discontinuation of the medication. Ovulation usually happens 5 to 10 days after the last dose of clomiphene, and the couple is advised to engage in coitus at least every other day during this time. Therefore, choices A, B, and C are incorrect as they do not provide accurate information regarding clomiphene treatment for infertility.
The client in the Emergency Department, who has suffered an ankle sprain, should be taught to:
- A. use cold applications to the sprain during the first 24-48 hours.
- B. expect disability to decrease within the first 24 hours of injury
- C. expect pain to decrease within 3 hours after injury.
- D. begin progressive passive and active range of motion exercises immediately.
Correct Answer: A
Rationale: When a client suffers an ankle sprain, the nurse should teach them to use cold applications to the sprain during the first 24-48 hours. Cold applications are believed to produce vasoconstriction and reduce the development of edema. Expecting disability to decrease within the first 24 hours of injury (choice B) is incorrect as disability and pain are anticipated to increase during the first 2-3 hours after injury. Expecting pain to decrease within 3 hours after injury (choice C) is also incorrect as pain and swelling usually increase initially. Beginning progressive passive and active range of motion exercises immediately (choice D) is not recommended; these exercises are usually started 2-5 days after the injury, according to the physician's recommendation. Treatment for a sprain involves support, rest, and alternating cold and heat applications. X-ray pictures are often necessary to rule out any fractures.
Which of the following arterial blood gas values indicates a patient may be experiencing a condition of metabolic acidosis?
- A. PaO2 90 mm Hg
- B. Bicarbonate 15 mEq/L
- C. CO2 47 mm Hg
- D. pH 7.34
Correct Answer: B
Rationale: The correct answer is B: Bicarbonate 15 mEq/L. In metabolic acidosis, the bicarbonate levels are lower than normal. A bicarbonate value of 15 mEq/L indicates a deficit in the buffer system, contributing to the acidosis. Choices A, C, and D are incorrect. Choice A, PaO2 90 mm Hg, reflects oxygen partial pressure and is not directly related to metabolic acidosis. Choice C, CO2 47 mm Hg, represents carbon dioxide levels and is more indicative of respiratory status. Choice D, pH 7.34, falls within the normal range (7.35-7.45) and does not confirm metabolic acidosis.