The nurse is caring for a patient with respiratory problems. Which assessment finding indicates a late sign of hypoxia?
Elevated blood pressure
Increased pulse rate
Cyanosis
Restlessness
The Correct Answer is C
A. Elevated blood pressure may occur with various conditions but is not a specific late sign of hypoxia.
B. An increased pulse rate can be an early compensatory response to hypoxia rather than a late sign.
C. Cyanosis, which is a bluish discoloration of the skin and mucous membranes, is a classic late sign of hypoxia, indicating severe oxygen deprivation.
D. Restlessness may indicate early signs of hypoxia or anxiety rather than a late sign and can occur before cyanosis develops.
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View Related questions
Correct Answer is ["A","B","C","D"]
Explanation
A. A patient with an indwelling catheter requires regular perineal care to prevent infection due to increased risk from the catheter.
B. Urinary and fecal incontinence increase the risk of skin breakdown and infection, necessitating frequent perineal care.
C. Surgical dressings in the rectal and genital areas require perineal care to maintain hygiene and prevent wound contamination.
D. Bariatric patients often need regular perineal care due to skin folds and increased risk of moisture-related skin breakdown.
E. A circumcised, ambulatory male typically has a lower risk of infection and may not require as frequent perineal care unless other factors are present.
Correct Answer is D
Explanation
A. The superior vena cava is responsible for returning deoxygenated blood from the upper body to the heart and is not directly involved in myocardial ischemia.
B. The carotid artery supplies blood to the brain and is not the primary focus in the context of myocardial infarction.
C. The pulmonary artery carries deoxygenated blood from the heart to the lungs and is not involved in coronary circulation.
D. The coronary arteries supply blood to the heart muscle itself. Ischemia during a myocardial infarction occurs when these arteries are blocked or narrowed, leading to a lack of blood flow and oxygen to the heart tissue.