HESI RN
Biology Test
1. Which of the following is not found in a prokaryotic cell?
- A. Plasma membrane
- B. Cytoplasm
- C. Nucleus
- D. Ribosomes
Correct answer: C
Rationale: The correct answer is C, 'Nucleus.' Prokaryotic cells do not have a defined nucleus, unlike eukaryotic cells. The plasma membrane, cytoplasm, and ribosomes are all components found in prokaryotic cells. The plasma membrane surrounds the cell and regulates what enters and exits, the cytoplasm is the gel-like substance that fills the cell, and ribosomes are responsible for protein synthesis.
2. A nurse is reinforcing teaching with the mother of a 9-month-old infant regarding appropriate dietary choices. Which of the following observations by the nurse indicates a need for further teaching?
- A. The infant eats the same foods prepared for the rest of the family.
- B. The mother gives the infant finger foods, such as apple slices for a snack.
- C. The infant drinks 2 quarts of whole milk a day.
- D. The infant drinks from a cup with a cover.
Correct answer: C
Rationale: The correct answer is C. Infants should not consume more than 24 ounces of milk a day as it can lead to iron deficiency anemia and other issues. Choices A and B demonstrate appropriate dietary choices for a 9-month-old, as they involve providing the infant with family foods and appropriate finger foods. Choice D is also appropriate as it shows the infant is transitioning to drinking from a cup.
3. Following a blizzard that resulted in millions of dollars of damage, the community health nurse is planning to seek financial assistance for families affected by the disaster. Which contact is most important for the nurse to make?
- A. the governor's disaster relief program
- B. Federal Emergency Management Agency (FEMA)
- C. local churches that can provide shelter
- D. the community to seek volunteer contributions
Correct answer: B
Rationale: The correct answer is B, the Federal Emergency Management Agency (FEMA). FEMA is the primary agency responsible for providing financial assistance and support during disasters. While the governor's disaster relief program may also offer help, FEMA has more extensive resources and expertise in disaster response. Local churches providing shelter and seeking volunteer contributions from the community are valuable resources but may not offer the comprehensive financial assistance that FEMA can provide in such situations.
4. The nurse explains to an older adult male the procedure for collecting a 24-hour urine specimen for creatinine clearance. Which action is most important for the nurse to include in their care plan for the shift?
- A. Assess the client for confusion and reteach the procedure
- B. Check the urine for color and texture
- C. Empty the urinal contents into the 24-hour collection container
- D. Discard the contents of the urinal
Correct answer: C
Rationale: To ensure accurate creatinine clearance results, it is crucial to collect all urine within the 24-hour period. The process should begin with discarding the first specimen and then collecting all subsequent urine in the designated 24-hour collection container. This ensures that the sample is complete and accurate for the creatinine clearance calculation.
5. Phagocytes in the immune system are responsible for the biological action of which of the following?
- A. Secreting
- B. Consuming
- C. Altering
- D. Building
Correct answer: B
Rationale: The correct answer is B: Consuming. Phagocytes are cells that engulf and digest pathogens, dead cells, and other harmful particles, playing a crucial role in the immune system's defense. Phagocytes do not secrete substances, alter particles, or build structures; their primary function is to consume and eliminate harmful entities.