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3 years ago

What technology will I use when I become a surgical technologist?

Computers and Technology

2 answers:

IrinaK [193]3 years ago

8 0

Answer:

With operating room dramas being a popular genre for TV, most of us have seen depictions of a surgeon being passed a scalpel by an unidentified technician in a brightly lit OR. But who is that technician and what other responsibilities do they have?

Surgical technologists, more commonly known as surgical techs, assist doctors and other medical personnel before, during, and after operational procedures. They’re trained individuals who often hold advanced certifications and work long hours as key members of the surgical team.

otez555 [7]3 years ago

3 0

Explanation:

Preoperative: Sterile Hands

The surgical technologist is the first person to enter the OR before surgery. During this preoperative phase the surgical technologist adheres closely to the following routine:

Carefully dons his or her operating room attire, including scrubs

Begins to prepare and sterilize the room

Gathers all of the equipment and surgical tools that the surgery requires

Sterilizes, counts and carefully arranges them

The most important part of this preoperative phase is creating and maintaining the OR’s sterile environment. Sterile fields can be compromised in a variety of ways, the most common of which is by introducing moisture. To prevent this, the surgical technologist is responsible for arranging dry drapes around the operating table and keeping all surfaces in a sterile condition.

Intraoperative: The Third Hand

During the intraoperative phase of the surgery, surgical technologists are still responsible for maintaining the sterility of the OR, but they also effectively become a “third hand” to the surgeon and surgeon’s assistant during the procedure and perform the following tasks:

Help prepare medications and administer them to the patient

Assist in retracting tissues from the patient

Passes the surgical tools to the surgeon and surgical assistant during the operation

At any time during an operation, if a tool is missing or contaminated, the delay or resulting infection could cost a patient his or her life. That is why surgical technologists must be diligent and thorough at all times.

Postoperative: Tying Things Up

As the operation concludes, surgical techs are responsible for the following:

Counting all of the tools and instruments used during surgery to ensure that nothing is left behind in a patient

Suture the incision and apply disinfected dressings to the area

Dispose of items such as needles and gauze, and continue to maintain the OR’s sterile environment until the patient is sent to the recovery ward

Thinking-On-Your-Feet: Cell Phones in the OR

While surgical techs aren’t expected to work miracles, they must be able to think quickly on their feet in emergency situations. During a recent hospital blackout and emergency generator failure, one quick-thinking surgical tech, with the help of the patient’s family member, rounded up enough cell phones to illuminate the OR while surgeons completed an emergency appendectomy.

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Identify a statement that accurately differentiates between short-term memory and working memory.

Veronika [31]

Answer:

Short term memory is in which a person may forgot very previously introduced knowledge, whereas working memory...well...works. Most people have working memory.

Explanation:

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3 years ago

Complete each sentence using the drop-down menu. Information on local driving laws can be found on a website. A class textbook c

zheka24 [161]

Answers:

1. D

2. A

3. B

4. C

Explanation: I just did it and got a 100%

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3 years ago

Read 2 more answers

One of the earlier applications of crypto-graphic hash functions was the storage of passwords to authenticate usersin computer s

vagabundo [1.1K]

Answer: provided in the explanation part.

Explanation:

This is actually quite long but nevertheless i will make it as basic as possible.

Question (a)

Attack A:

One way property of hash means that we can't find the input string if given the hash value. The calculation of hash from input string is possible but it is not possible to calculate the input string when given the hash. If the hash function is properly created to have one-way property then there is no way of finding the exact input string. So this attack won't work as the one-way property of hash function can't be broken if the hash function is properly created.

Attack B:

Suppose h() is the hash function. And h(x) = m where x is the string and m is the hash. Then trying to find another string y such that h(y) = m is called finding out the second pre-image of the hash.

Although we can't know the exact initial string for sure, we can by using brute force method find out a second preimage.

This attack will take a very long time. It has the time complexity of 2n. It requires the attacker to have an idea about the kind of passwords that might be used and then brute force all of them to find the string that has the same hash. Each try will have a chance of 1/2n to succeed.

Rainbow attack using rainbow table is often used for such brute-force attack. This comprises a rainbow table which contains passwords and their pre-hashed values.

Therefore, it is not possible to determine the second preimages of h so easily.

Attack C:

Collisions refer to finding out m and m' without knowing any of them. Finding out collisions is easier than finding preimages. This is because after finding out 2n pairs of input/output. The probability of two of them having the same output or hash becomes very high. The disadvantage is that we can't decide which user's hash to break. However, if I do not care about a particular user but want to get as many passwords as possible, then this method is the most feasible.

It has the time complexity of 2n/2.

Hence, this is the attack which has the most success rate in this scenario.

Question (b)

The brute force way of finding out the password usually involves using a rainbow attack. It comprises a rainbow table with millions of passwords and their hashes already computed. By matching that table against the database, the password can be recovered.

Therefore it is often preferred to salt the password. It means we add some random text to the password before calculating the hash.

The salts are usually long strings. Although users usually do not select long passwords, so a rainbow table with hashes of smaller passwords is feasible. But once salt is used, the rainbow table must accommodate for the salt also. This makes it difficult computationally. Although password might be found in the rainbow table. The salt can be anything and thus, make brute-force a LOT more difficult computationally.

Therefore salt is preferred to be added to passwords before computing their hash value.

Question (c)

A hash output length of 80 means there can be exactly 280 different hash values. This means there is at least one collision if 280+1 random strings are hashed because 280 values are used to accommodate all the possible strings. It is not hard with today's computation power to do match against more than this many strings. And doing so increases the probability of exposing a probable password of a user.

Hence, 80 is not a very secure value for the hash length.

cheers i hope this helps!!!!

6 0

4 years ago

failure of the _ cylinder will often result in sudden unexpected loss of the ability to stop the vehicle

grin007 [14]

Failure of the Brake master cylinder will often result in sudden unexpected loss of the ability to stop the vehicle

Explanation:

The ability to stop the vehicle lies with the Brakes. If brakes of a vehicle do not work properly then it might become difficult to stop the vehicle. This happens when a cylinder called brake master cylinder fails.

The brake master cylinder might not work properly with the passage of time or it can form internal leaks. This is the master cylinder and it controls other cylinders in a vehicle. Its failure affect the brakes badly, it will be unsafe to drive such a vehicle.

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3 years ago

Write a program that reads a string of characters, pushing each character onto a stack as it is read and simultaneously adding i

sleet_krkn [62]

Answer:

#include <iostream>

#include <stack>

#include <queue>

#include <string>

int main()

{

while ( true )

{

std::string letters;

std::cout << "Please enter a word (Enter - exit): ";

std::getline( std::cin, letters );

if ( letters.empty() ) break;

std::stack<char>

s( std::stack<char>::container_type( letters.begin(), letters.end() ) );

std::queue<char>

q( std::queue<char>::container_type( letters.begin(), letters.end() ) );

while ( !s.empty() && s.top() == q.front() )

{

s.pop();

q.pop();

}

if ( s.empty() ) std::cout << "The word is a palindrome" << std::endl;

else std::cout << "The word is not a palindrome" << std::endl;

}

return 0;

}

Explanation:

A stack is used to replicate a stack data structure in C++ while Queue container is a replica of the queue data structure in C++, Unlike stack, in the queue container, there are two ends, i.e. front, and back.

In the code above to be able to use used stack and queue, we included the headers #include <stack> and#include <queue>.

4 0

3 years ago