Which is the most reliable method for monitoring fluid balance?
- A. Daily intake and output
- B. Vital signs
- C. Daily weight
- D. Skin turgor
Correct Answer: A
Rationale: The correct answer is A: Daily intake and output. Monitoring fluid balance involves tracking the amount of fluids taken in and expelled from the body. Intake includes oral, IV, and tube feedings, while output includes urine, vomitus, diarrhea, and any other fluid losses. Daily intake and output provide a comprehensive view of a patient's fluid status, helping identify trends and potential issues. Vital signs (B) provide general information but not specific to fluid balance. Daily weight (C) can fluctuate due to various factors, not just fluid status. Skin turgor (D) is a late sign of dehydration and not as reliable as intake and output monitoring.
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A patient with a new diagnosis of lung cancer decides to have radiation therapy. Which of the ff. expectations of this treatment is most appropriate?
- A. Complete cure of the cancer
- B. Prevention of the need for oxygen
- C. Increased comfort
- D. Prevention of cancer spread
Correct Answer: C
Rationale: The correct answer is C: Increased comfort. Radiation therapy for lung cancer aims to alleviate symptoms, reduce pain, and improve quality of life. It is not typically used as a curative treatment like surgery or chemotherapy (A). It does not prevent the need for oxygen (B), as lung cancer can still affect lung function. While radiation therapy may help control the growth of cancer cells, it is not always effective in preventing cancer spread (D). Therefore, the most appropriate expectation of radiation therapy for lung cancer is increased comfort for the patient.
Which neurotransmitter mediates the sympathetic response?
- A. Norepinephrine
- B. Prostaglandin
- C. Acetylcholine
- D. Serotonin
Correct Answer: A
Rationale: The correct answer is A: Norepinephrine. Norepinephrine is the primary neurotransmitter that mediates the sympathetic response. It is released by sympathetic nerve endings and acts on adrenergic receptors in various target organs to initiate the "fight or flight" response. Prostaglandin, acetylcholine, and serotonin do not directly mediate the sympathetic response and are involved in different physiological processes.
While managing a client after a medical or surgical procedure for bladder stones, for what rise in the temperature should the nurse notify the physician?
- A. When the temperature rises above 101F
- B. When the temperature rises above 100F
- C. When the temperature rises above 102F
- D. When the temperature rises above 99F
Correct Answer: C
Rationale: The correct answer is C: When the temperature rises above 102F. A temperature rise above 102F is concerning as it may indicate infection or other complications post-procedure. This higher threshold helps in early detection and timely intervention. Choices A and B set lower thresholds, potentially delaying necessary medical attention. Choice D is below the typical threshold for fever and would not typically warrant physician notification in this context.
The following would be a symptom the nurse would expect to find during assessment of a patient with macular degeneration, EXCEPT:
- A. Decreased ability to distinguish colors
- B. Loss of central vision
- C. Loss of near vision
- D. Loss of peripheral vision
Correct Answer: D
Rationale: The correct answer is D: Loss of peripheral vision. Macular degeneration affects the central vision, specifically the macula, which is responsible for central vision and sharp detail. Loss of peripheral vision is not a typical symptom of macular degeneration. The macula is located in the center of the retina, so symptoms would relate to central vision impairments such as decreased ability to distinguish colors, loss of central vision, and loss of near vision. Peripheral vision is not primarily affected by macular degeneration, hence it is not an expected symptom.
Cancer is the second major cause of death in this country. What is the first step toward effective cancer control?
- A. Increasing governmental control of potential carcinogens
- B. Changing habits and customs that predispose the individual to cancer
- C. Conducting more mass screening programs
- D. Educating public and professional people about cancer
Correct Answer: B
Rationale: The correct answer is B because changing habits and customs that predispose the individual to cancer is crucial in preventing cancer. This includes lifestyle changes such as quitting smoking, maintaining a healthy diet, exercising regularly, and avoiding excessive sun exposure. By modifying behaviors that increase cancer risk, individuals can significantly reduce their chances of developing cancer.
A: Increasing governmental control of potential carcinogens is not the first step towards effective cancer control as individual behaviors have a more direct impact on cancer risk.
C: Conducting more mass screening programs is important but not the first step as prevention through lifestyle changes takes priority.
D: Educating the public and professionals about cancer is essential but changing habits is the initial crucial step in effective cancer control.