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Nursing Elites

ATI TEAS 7

Biology

1. Which of the following is an example of a nosocomial infection?

Correct answer: B

Rationale: Rationale: A nosocomial infection, also known as a healthcare-associated infection (HAI), is an infection that is acquired in a healthcare setting. In this case, a UTI acquired during a catheterization procedure is a classic example of a nosocomial infection. Catheterization involves the insertion of a tube into the urinary tract, which can introduce bacteria into the urinary system and lead to an infection. Nosocomial infections are a significant concern in healthcare settings due to the potential for increased morbidity, mortality, and healthcare costs. Let's review the other options: A) The common cold contracted from a family member - This is not a nosocomial infection as it is acquired outside of a healthcare setting. C) A fungal skin infection from contaminated soil - This is not a nosocomial infection as it is acquired from environmental exposure, not in a healthcare setting.

2. Which adjective best describes the following setting: "A lone cabin stood nestled amongst towering pines, smoke curling from its chimney into the crisp mountain air."

Correct answer: C

Rationale: "Idyllic" captures the peaceful and picturesque nature of the setting.

3. The T wave on an ECG corresponds to:

Correct answer: D

Rationale: The T wave on an ECG corresponds to ventricular repolarization. During this phase, the ventricles are resetting electrically after contraction, preparing for the next heartbeat. Atrial depolarization is represented by the P wave, ventricular depolarization by the QRS complex, and atrial repolarization is typically hidden within the QRS complex. Therefore, option D, 'Ventricular repolarization,' is the correct choice when identifying the electrical activity represented by the T wave on an ECG.

4. What is the term for the particles moving around within a substance?

Correct answer: C

Rationale: In most cases, the particles moving within a substance are individual molecules or atoms, depending on the state of matter.

5. What property of a wave remains unchanged when it passes from one medium to another with the same speed?

Correct answer: d

Rationale: The speed of a wave remains constant when passing from one medium to another with the same speed.

6. What is the process by which bacteria can acquire new genetic material from their environment?

Correct answer: D

Rationale: Rationale: A) Transformation: Transformation is the process by which bacteria can take up free DNA from their environment and incorporate it into their own genome. This can lead to the acquisition of new genetic material and traits. B) Transduction: Transduction is a process where genetic material is transferred from one bacterium to another by a bacteriophage (a virus that infects bacteria). During transduction, the bacteriophage carries bacterial DNA from one host cell to another, allowing for the transfer of genetic material. C) Conjugation: Conjugation is a mechanism of horizontal gene transfer in bacteria where genetic material is transferred between two bacterial cells that are in direct contact. This transfer is mediated by a conjugative plasmid that carries the genetic information to be transferred. Therefore, all of the processes mentioned (transformation, transduction, and conjugation) are ways in which bacteria can acquire new genetic material from their environment.

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