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SashulF [63]
2 years ago
7

What is a medical procedure used to gain access to the venous system in the event that an IV line cannot be placed or this proce

dure is needed to guarantee patient safety.
Medicine
1 answer:
kozerog [31]2 years ago
5 0

Answer:

The avascular access procedure inserts a flexible, sterile plastic tube called a catheter into a blood vessel to allow blood to be drawn from or medication to be delivered into a patient's bloodstream. A catheter may be used for intravenous (IV) antibiotic treatment and/or other medications, chemotherapy, long-term IV feeding, and blood transfusions. Vascular access spares patients the stress of repeated needle sticks and provides a painless way to draw blood or deliver medication.

Explanation:

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alisha [4.7K]

Answer:

Okay

Explanation:

Human topoisomerase I plays an important role in removing positive DNA supercoils that accumulate ahead of replication forks. It also is the target for camptothecin-based anticancer drugs that act by increasing levels of topoisomerase I-mediated DNA scission. Evidence suggests that cleavage events most likely to generate permanent genomic damage are those that occur ahead of DNA tracking systems. Therefore, it is important to characterize the ability of topoisomerase I to cleave positively supercoiled DNA. Results confirm that the human enzyme maintains higher levels of cleavage with positively as opposed to negatively supercoiled substrates in the absence or presence of anticancer drugs. Enhanced drug efficacy on positively supercoiled DNA is due primarily to an increase in baseline levels of cleavage. Sites of topoisomerase I-mediated DNA cleavage do not appear to be affected by supercoil geometry. However, rates of ligation are slower with positively supercoiled substrates. Finally, intercalators enhance topoisomerase I-mediated cleavage of negatively supercoiled substrates but not positively supercoiled or linear DNA. We suggest that these compounds act by altering the perceived topological state of the double helix, making underwound DNA appear to be overwound to the enzyme, and propose that these compounds be referred to as ‘topological poisons of topoisomerase I’

8 0
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Which of the following describes Creutzfeldt-Jakob disease, which can also cause similar symptoms as
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Answer:

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Explanation:

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Yuliya22 [10]

Answer:

They would be biased towards the patient and the patient wouldn't get the best care or get to much attention and the nurse would be too distracted for others.

Explanation:

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