What signs and symptoms indicate hypoxia? Select all that apply.
Alert and oriented
Cyanosis
Anxiety and restlessness
Oxygen saturation 96%
Capillary refill 5 seconds
Correct Answer : B,C,E
A) Alert and oriented: Being alert and oriented typically indicates adequate oxygenation, not hypoxia. Patients experiencing hypoxia are more likely to show signs of confusion or altered mental status rather than clarity.
B) Cyanosis: Cyanosis is a classic sign of hypoxia, presenting as a bluish discoloration of the skin and mucous membranes due to low oxygen levels in the blood. This is a significant indicator of inadequate oxygenation.
C) Anxiety and restlessness: These symptoms are common responses to hypoxia as the body attempts to compensate for insufficient oxygen. Patients may feel anxious or restless as they struggle to breathe or feel a sense of impending doom.
D) Oxygen saturation 96%: An oxygen saturation level of 96% is generally considered normal and indicates adequate oxygenation. Therefore, this finding does not suggest hypoxia.
E) Capillary refill 5 seconds: A prolonged capillary refill time can indicate poor perfusion and potential hypoxia. Inadequate blood flow can lead to reduced oxygen delivery to tissues, making this a relevant sign of hypoxia
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Correct Answer is B
Explanation
A) Posterior superior iliac spine: While this landmark is useful for certain assessments, it is more commonly used to identify pelvic alignment rather than symmetry of the spine itself.
B) Iliac crests: The iliac crests serve as an important anatomical landmark for assessing symmetry in the posterior spine. By comparing the heights of the iliac crests on both sides, the nurse can determine any asymmetry in the pelvis and, by extension, the spine, as uneven heights may indicate spinal deformities.
C) Paravertebral muscles: While assessing the paravertebral muscles can provide information about muscle tone and potential asymmetries, they are not direct landmarks for evaluating overall spinal symmetry.
D) Twelfth thoracic vertebrae: Although identifying specific vertebrae is important for certain assessments, the twelfth thoracic vertebra is not commonly used as a primary landmark for assessing symmetry in the spine. It is more useful for locating the general area of the thoracic spine.
Correct Answer is D
Explanation
A) Changes in peripheral vision in response to light: While peripheral vision is important in a comprehensive eye assessment, it is not specifically evaluated through the PERRLA acronym. PERRLA focuses on how the pupils respond to light and accommodation, not on peripheral vision changes.
B) Involuntary blinking in the presence of bright light: Involuntary blinking is part of a reflex action known as the blink reflex, which helps protect the eyes from bright lights and foreign objects. However, this response is not what the "A" in PERRLA refers to, which is more specifically about pupillary reactions to focus.
C) Pupillary dilation when looking at a near object: When focusing on a near object, the pupils actually constrict rather than dilate. This process, known as accommodation, is important for clear vision at close distances but does not pertain to the dilation of pupils.
D) Pupillary constriction when looking at a near object: The "A" in PERRLA stands for accommodation, which specifically refers to the pupils constricting when a person looks at a nearby object. This reaction helps the eyes focus properly and is a normal finding in a healthy neurological assessment. Thus, option D accurately describes the "A" in the PERRLA assessment.