Which clinical manifestation is most reflective of an early response to hypoxia?

Restlessness

Cyanosis

Apnea

Bradycardia

Answer and Explanation

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.

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Correct Answer is D

Explanation

The correct answer is d) Tighten the abdominal muscles while exhaling.

Choice A Reason:

“Raise both shoulders while breathing deeply” is incorrect. Diaphragmatic breathing focuses on using the diaphragm rather than the shoulders. Raising the shoulders can lead to shallow chest breathing, which is less effective for oxygen exchange.

Choice B Reason:

“Inhale through the mouth” is incorrect. For diaphragmatic breathing, it is recommended to inhale through the nose. This helps filter, warm, and humidify the air before it reaches the lungs.

Choice C Reason:

“Exhale through the nose” is incorrect. While exhaling through the nose is beneficial in some breathing exercises, diaphragmatic breathing typically involves exhaling through pursed lips. This technique helps slow down the exhalation and keeps the airways open longer.

Choice D Reason:

“Tighten the abdominal muscles while exhaling” is correct. Tightening the abdominal muscles helps push the diaphragm up, forcing air out of the lungs more efficiently. This action is a key component of effective diaphragmatic breathing.

A. To provide a means for medication administration B. To eliminate the need for wound dressings C. To limit the amount of bleeding from the surgical site D. To prevent fluid from accumulating in the wound

Correct Answer is D

Explanation

Choice A reason: To provide a means for medication administration

A Jackson-Pratt (JP) drain is not used for medication administration. Its primary function is to remove fluids that accumulate in a surgical site, which helps to prevent infection and promote healing. Medication administration is typically done through other means such as intravenous (IV) lines or oral medications.

Choice B reason: To eliminate the need for wound dressings

The JP drain does not eliminate the need for wound dressings. Dressings are still required to protect the wound site, absorb any additional drainage, and prevent infection. The JP drain works in conjunction with dressings to manage wound care effectively.

Choice C reason: To limit the amount of bleeding from the surgical site

While the JP drain can help manage bleeding by removing accumulated blood, its primary purpose is not to limit bleeding. Instead, it is designed to prevent the buildup of fluids, including blood, which can lead to complications such as hematomas or infections.

Choice D reason: To prevent fluid from accumulating in the wound

The primary purpose of a Jackson-Pratt (JP) drain is to prevent fluid from accumulating in the wound. This includes blood, lymphatic fluid, and other bodily fluids that can collect at the surgical site. By removing these fluids, the JP drain helps to reduce the risk of infection, promote healing, and decrease the likelihood of complications.

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Which clinical manifestation is most reflective of an early response to hypoxia?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is demonstrating to a client how to perform diaphragmatic breathing. The nurse should educate the client to complete which action?

Correct Answer is D

Explanation

A nurse is caring for a client who has a Jackson-Pratt (JP) drain in place after surgery for an abdominal wound. The nurse should understand that the JP drain was placed for which purpose?

Correct Answer is D

Explanation

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