1. Aubrey thinks about primary nursing as a system to deliver care. Which of the following

A. Collaborates with the physician
B. Provides care to a group of patients together with a group of nurses
C. Provides care for 5-6 patients during their hospital stay.
D. Performs comprehensive initial assessment

Correct answer: D

Rationale: Primary nursing is a care delivery system where one nurse is responsible for the total nursing care needs of a group of patients throughout their hospital stay. This includes performing comprehensive initial assessments, developing care plans, coordinating with other healthcare team members, and providing direct patient care. Option D is the correct answer as it aligns with the core principles of primary nursing, emphasizing the nurse's role in conducting thorough assessments to ensure individualized and holistic care for each patient in their caseload. Options A, B, and C do not accurately reflect the key components of primary nursing, making them incorrect choices.

2. 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.

3. Which of the following is a weak acid commonly found in citrus fruits?

A. Sulfuric acid (Hâ‚‚SOâ‚„)
B. Hydrochloric acid (HCl)
C. Citric acid
D. Nitric acid (HNOâ‚ƒ)

Correct answer: c

Rationale: Citric acid is a weak acid commonly found in citrus fruits. The other choices are strong acids.

4. Pseudostratified columnar epithelium

A. Skeletal muscle
B. Bony skeleton
C. External ears
D. Bloodstream

Correct answer: C

Rationale: The correct answer is C: External ears. Pseudostratified columnar epithelium is a type of epithelial tissue found in the respiratory tract, where it appears to be stratified but all cells are anchored to the basement membrane. The external ears are lined with pseudostratified columnar epithelium to help protect and support the structures of the ear canal. Skeletal muscle (A) is a type of muscle tissue, bony skeleton (B) refers to bones, and bloodstream (D) is a system for blood circulation, which are not related to pseudostratified columnar epithelium.

5. Which of the following is an example of a polymer?

A. Methane
B. Ethanol
C. Polyethylene
D. Acetic acid

Correct answer: C

Rationale: Polyethylene is a polymer, consisting of a large number of repeating ethylene units. The other choices represent small organic compounds.

6. What is the atomic number of an element?

A. The number of protons in an atom's nucleus.
B. The number of neutrons in an atom's nucleus.
C. The number of electrons in an atom's valence shell.
D. The number of isotopes of an element.

Correct answer: B

Rationale: The atomic number of an element is a fundamental property that defines the identity of an element. It is the number of protons in the nucleus of an atom. The number of protons determines the element's position in the periodic table and its chemical properties.