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 C
Explanation
A) Motor component of IV (Trochlear): The trochlear nerve primarily controls the superior oblique muscle of the eye, which is responsible for downward and lateral eye movements. The findings described do not relate to eye movement and therefore do not indicate dysfunction of this nerve.
B) Motor and sensory components of XI (Accessory): The accessory nerve innervates the sternocleidomastoid and trapezius muscles, primarily affecting head rotation and shoulder elevation. The symptoms noted in the assessment do not pertain to these muscle functions, so this option is not correct.
C) Motor component of VII (Facial): The signs of asymmetry in frowning, uneven eyebrow lifting, sagging eyelids, and air escaping when puffing the cheeks are characteristic of dysfunction in the facial nerve (cranial nerve VII). This nerve controls the muscles of facial expression, and impairment would lead to the described asymmetrical movements.
D) Motor component of X (Vagus) and sensory component of XII (Hypoglossal): The vagus nerve affects autonomic functions and some swallowing muscles, while the hypoglossal nerve controls tongue movements. Neither nerve is primarily responsible for the facial expressions described in the assessment findings, making this option incorrect.
Correct Answer is B
Explanation
A) The patient's integumentary system is within normal limits for his age: While thinning skin and decreased turgor can be common in older adults, the specific combination of findings, including the patient feeling cold, suggests that further investigation is warranted rather than assuming they are normal.
B) The patient may have a metabolic condition causing him to feel cold: Thin skin and non-elastic turgor can be indicative of aging, but the sensation of always feeling cold may point to an underlying metabolic condition, such as hypothyroidism or poor circulation, which can affect thermoregulation.
C) The patient has abnormal thinning of skin: While skin thinning is common in older adults, it is not necessarily "abnormal" in the context of aging. However, in conjunction with other symptoms like non-elastic turgor and cold sensitivity, it may warrant further evaluation.
D) The patient should have elastic turgor: In older adults, it is common to see decreased elasticity and turgor of the skin. Therefore, expecting the patient to have elastic turgor may not be appropriate, as it reflects the natural aging process rather than a healthy standard.