ATI TEAS 7
Anatomy
1. What is the process by which a fertilized egg implants itself in the lining of the uterus?
- A. Fertilization
- B. Implantation
- C. Gestation
- D. Parturition
Correct answer: B
Rationale: The correct answer is B: Implantation. Implantation is the process by which a fertilized egg, or zygote, attaches itself to the uterine wall to establish a pregnancy. Fertilization is the fusion of sperm and egg to form a zygote, which occurs in the fallopian tube. Gestation refers to the period of development of the fetus inside the uterus. Parturition is the process of giving birth. Therefore, implantation specifically refers to the attachment of the fertilized egg to the uterine lining, making it the most appropriate answer in this context.
2. If 3 nurses can care for 15 patients, how many nurses are needed for 25 patients?
- A. 4
- B. 5
- C. 6
- D. 7
Correct answer: B
Rationale: 3 nurses / 15 patients = x nurses / 25 patients. Solve for x.
3. Which term describes the ability of a substance to conduct electricity?
- A. Reactivity
- B. Density
- C. Conductivity
- D. Viscosity
Correct answer: c
Rationale: Conductivity refers to a substance's ability to conduct electricity. Substances that conduct electricity well are known as conductors.
4. What does the term "colligative property" refer to in solutions?
- A. Properties that depend on the nature of the solute particles
- B. Properties that depend on the concentration of solute particles
- C. Properties that depend on the temperature of the solution
- D. Properties that depend on the pressure of the solution
Correct answer: b
Rationale: Colligative properties are dependent on the number of solute particles in a solution, not their nature. The other choices do not accurately define colligative properties.
5. The most common cause of hospital-acquired infections (HAIs) are:
- A. Viruses
- B. Bacteria
- C. Fungi
- D. Parasites
Correct answer: B
Rationale: Rationale: Hospital-acquired infections (HAIs), also known as nosocomial infections, are infections that patients acquire during the course of receiving treatment in a healthcare facility. Among the options provided, bacteria are the most common cause of HAIs. Bacteria such as Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa are known to cause a wide range of infections in healthcare settings. While viruses, fungi, and parasites can also cause HAIs, bacteria are the most prevalent and significant pathogens responsible for these infections. Proper infection control measures, including hand hygiene, environmental cleaning, and antimicrobial stewardship, are essential in preventing and controlling HAIs caused by bacteria.
6. Which type of nutrient requires the most complex and lengthy digestion process?
- A. Carbohydrates
- B. Proteins
- C. Fats
- D. Vitamins
Correct answer: B
Rationale: Rationale: Proteins require the most complex and lengthy digestion process among the options provided. When we consume proteins, they need to be broken down into amino acids, which are the building blocks of proteins. This process starts in the stomach with the help of stomach acid and enzymes, continues in the small intestine where more enzymes break down proteins into amino acids, and finally, these amino acids are absorbed into the bloodstream for various bodily functions. Carbohydrates and fats also require digestion, but the process for breaking down proteins into amino acids is more complex and time-consuming. Vitamins, on the other hand, do not require digestion in the same way as proteins, carbohydrates, and fats, as they are already in a form that can be readily absorbed by the body.
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