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 C
Explanation
Choice A Reason:
Place suction equipment at the bedside is incorrect. While having suction equipment available is important for emergency situations, it does not directly prevent postoperative pulmonary complications. Suction equipment is used to clear the airway if the client has difficulty breathing or if there is an obstruction.
Choice B Reason:
Administer a prophylactic expectorant is incorrect. Prophylactic expectorants can help in managing secretions, but they are not the primary intervention for preventing postoperative pulmonary complications. The main goal is to promote lung expansion and prevent atelectasis.
Choice C Reason:
Encourage the use of an incentive spirometer is correct. Using an incentive spirometer encourages deep breathing and lung expansion, which helps prevent atelectasis and other postoperative pulmonary complications. It is a key intervention in postoperative care to maintain optimal lung function.
Choice D Reason:
Perform range of motion exercises is incorrect. While range of motion exercises are important for preventing musculoskeletal complications and promoting circulation, they do not directly prevent pulmonary complications. The focus for pulmonary health is on lung expansion and clearing secretions.
Correct Answer is B
Explanation
Choice A reason: Consulting the family priest may provide spiritual support and guidance to the family, but it is not the most appropriate action for resolving a medical and ethical dilemma. The family priest may not have the necessary medical or ethical expertise to address the complexities of the situation
Choice B reason: The ethics committee is the appropriate body to consult in this situation. Ethics committees are composed of healthcare professionals, ethicists, and legal advisors who can provide guidance on complex ethical issues. They can help navigate the conflict between the parents’ religious beliefs and the medical necessity of the blood transfusion for the newborn. The committee can also ensure that the hospital’s actions align with legal and ethical standards.
Choice C reason: The Joint Commission is an accrediting body for healthcare organizations and does not provide direct assistance in individual patient care situations. While the Joint Commission sets standards for ethical practices, it is not involved in resolving specific ethical dilemmas at the patient level.
Choice D reason: The blood bank is responsible for the collection, testing, and distribution of blood products. While they can provide information about blood transfusions, they are not equipped to handle ethical conflicts related to the refusal of blood transfusions on religious grounds. The ethics committee is better suited for this role.
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