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| Section | Objectives |
|---|---|
| Topic 1: Verbal Skills | - Language Usage
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| Topic 2: Mathematics | - Word Problems
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| Topic 3: Science | - Biology
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NEW QUESTION # 81
Reading Comprehension
Passage:
Clear documentation in healthcare settings ensures continuity of care. Accurate records allow providers to understand patient history and make informed decisions.
Why is documentation important according to the passage?
Answer: A
Explanation:
The passage clearly states that documentation ensures continuity of care by allowing healthcare providers to understand patient history and make informed decisions. Option B directly reflects this purpose. The passage does not claim that documentation replaces care, eliminates all errors, or reduces workload. NEX passages often emphasize communication and record-keeping as foundational healthcare skills, making continuity of care a key concept.
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NEW QUESTION # 82
Which of the following is the most common route of transmission of respiratory infections?
Answer: C
Explanation:
Respiratory infections are most commonly transmitted through airborne droplets released when an infected person coughs, sneezes, or talks. These droplets may be inhaled directly or land on surfaces where they can be transferred to the respiratory tract. Sexual intercourse and IV drug use are associated with bloodborne or sexually transmitted infections. The fecal-oral route is common for gastrointestinal infections. The NEX Science exam frequently tests routes of transmission as part of infection control and prevention, making coughing the correct and most common route for respiratory infections.
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NEW QUESTION # 83
You are staining bacterial samples for identification and viewing them under a microscope.
Which bacterial shape do you observe in the sample?
Answer: C
Explanation:
This question tests knowledge of bacterial morphology, which is commonly assessed on the NEX Science exam. Bacteria are often classified based on their shape, which helps in identification and diagnosis. The image shows elongated, rod-shaped bacteria. This shape is characteristic ofbacilli. Bacilli are cylindrical or rod-like and are commonly found in many bacterial species, includingEscherichia coliandBacillus anthracis.
Cocci are spherical in shape, spirochetes are long and spiral-shaped, and vibrios have a curved, comma-like appearance. None of these shapes match the straight rod-like structures shown in the image. Identifying bacterial shape is an important first step in microbiology before further tests such as Gram staining or biochemical analysis are performed. The NEX exam frequently uses images or descriptions to assess whether students can correctly distinguish between cocci, bacilli, spirilla/spirochetes, and vibrios based on visual characteristics. Recognizing bacilli as rod-shaped bacteria is a key foundational concept.
NEW QUESTION # 84
An employee receives notification that their job is being eliminated. Upon hearing the news, the employee bangs a fist on the worktable and shouts loud curses and insults about management.
This reaction corresponds to which stage of the stress response pathway?
Answer: C
Explanation:
The alarm stage is the initial reaction to a stressor and is characterized by emotional outbursts, increased heart rate, and release of stress hormones such as adrenaline. The employee's immediate anger and physical reaction reflect this stage. The resistance stage involves adaptation, and exhaustion occurs after prolonged stress. "Failure" is not a recognized stage of the stress response. The NEX Science exam frequently tests physiological and psychological responses to stress, making alarm the correct answer.
NEW QUESTION # 85
Veins throughout the body contain structures, indicated by arrows, in the image below.
The structures shown in the image prevent which of the following from occurring?
Answer: B
Explanation:
Veins contain one-way valves that prevent blood from flowing backward as it returns to the heart. These valves are especially important in veins of the arms and legs, where blood must move against gravity. When muscles contract, they push blood forward toward the heart, and the valves close behind it to prevent backflow. Without these valves, blood could pool in the veins, leading to conditions such as varicose veins.
The valves do not obstruct blood flow under normal conditions, nor do they prevent blood from leaking into surrounding tissues-that function is related to capillary walls. The NEX Science exam often emphasizes understanding how anatomical structures support physiological function, making venous valves a key cardiovascular concept.
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NEW QUESTION # 86
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