Which clinical manifestation is most reflective of an early response to hypoxia?
Restlessness
Cyanosis
Apnea
Bradycardia
The Correct Answer is A
Choice A Reason:
Restlessness is often one of the earliest signs of hypoxia. When the body experiences low oxygen levels, the brain is one of the first organs to be affected. This can lead to symptoms such as anxiety, agitation, and restlessness as the brain struggles to function properly without adequate oxygen. These symptoms occur because the body is trying to compensate for the lack of oxygen by increasing respiratory and heart rates, which can make a person feel uneasy or restless.
Choice B Reason:
Cyanosis refers to a bluish discoloration of the skin and mucous membranes due to low oxygen levels in the blood. While cyanosis is a significant indicator of hypoxia, it is typically a later sign. By the time cyanosis is visible, hypoxia has usually been present for some time, and oxygen levels have been critically low. Therefore, it is not the earliest clinical manifestation of hypoxia.
Choice C Reason:
Apnea is the absence of breathing. This is a severe and late sign of hypoxia. When a person stops breathing, it indicates that the body has been deprived of oxygen for an extended period, leading to critical conditions. Apnea is a medical emergency and requires immediate intervention, but it is not an early sign of hypoxia.
Choice D Reason:
Bradycardia is a slower than normal heart rate. Like apnea, bradycardia is a late sign of hypoxia. Initially, the body responds to low oxygen levels by increasing the heart rate (tachycardia) to pump more oxygenated blood to tissues. Bradycardia occurs when the body can no longer compensate, and the heart rate slows down, indicating severe hypoxia and impending failure of the cardiovascular system.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: Guided meditation and other nonpharmacological pain interventions can help reduce the perception of pain, which may allow for lower doses of pain management medications. This is beneficial as it can reduce the risk of side effects and dependency associated with higher doses of pain medications1. Studies have shown that integrating nonpharmacological methods like guided meditation can enhance overall pain management and improve the quality of life for patients2.
Choice B reason: Guided meditation is a complementary therapy and is not intended to replace pain medications entirely. While it can significantly aid in pain management, it is typically used alongside pharmacological treatments to provide a holistic approach to pain relief3. Relying solely on guided meditation without appropriate medical supervision and medication can lead to inadequate pain control.
Choice C reason: Guided meditation is not limited to hospital settings or licensed therapists. Many guided meditation resources are available online, through apps, or in community centers, making it accessible to a broader audience4. Patients can practice guided meditation at home, which provides flexibility and convenience in managing chronic pain.
Choice D reason: Pain medications are often prescribed on a regular schedule to maintain consistent pain control, especially in chronic pain conditions. While nonpharmacological interventions can reduce the need for frequent dosing, they do not eliminate the necessity for scheduled pain medications5. It is essential to follow a healthcare provider’s recommendations for medication administration to ensure effective pain management.
Correct Answer is A
Explanation
Choice A Reason:
“N95 (personal respirator mask)” is correct because varicella (chickenpox) is an airborne disease. The N95 mask is designed to filter out at least 95% of airborne particles, making it essential for protecting healthcare workers from inhaling infectious agents.
Choice B Reason:
“Surgical mask” is incorrect because while surgical masks provide a barrier against large respiratory droplets, they do not offer sufficient protection against airborne particles. Varicella can be transmitted through tiny airborne droplets, which necessitates the use of an N95 mask.
Choice C Reason:
“They don’t need a mask” is incorrect because healthcare workers must wear appropriate personal protective equipment (PPE) to prevent the spread of infectious diseases. Not wearing a mask would put the nurse at risk of contracting varicella.
Choice D Reason:
“Only the client needs a mask” is incorrect because while it is important for the client to wear a mask to reduce the spread of infectious droplets, the nurse also needs to wear an N95 mask to protect themselves from airborne transmission.
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