HESI RN
Biology Test
1. Which of the following describes the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products?
- A. Cellular respiration
- B. Meiosis
- C. Photosynthesis
- D. Mitosis
Correct answer: A
Rationale: The correct answer is A: Cellular respiration. Cellular respiration is the process in cells that converts biochemical energy from nutrients into ATP and releases waste products. This process occurs in the mitochondria of the cell. Choice B, Meiosis, is a type of cell division that produces gametes with half the chromosome number. Choice C, Photosynthesis, is the process by which plants, algae, and some bacteria convert light energy into chemical energy to produce glucose. Choice D, Mitosis, is a type of cell division that results in two daughter cells with identical sets of chromosomes as the parent cell.
2. The nurse observes an unlicensed assistive personnel (UAP) who is providing a total bed bath for a confused and lethargic client. The UAP is soaking the client's foot in a basin of warm water placed on the bed. What action should the nurse take?
- A. Remove the basin of water from the client's bed immediately
- B. Remind the UAP to dry between the client's toes completely
- C. Advise the UAP that this procedure is damaging to the skin
- D. Add skin cream to the basin of water while the foot is soaking
Correct answer: B
Rationale: Choice (B) is the correct action for the nurse to take in this situation. Ensuring that the UAP dries between the client's toes completely is crucial to prevent skin breakdown due to excessive moisture. While keeping the client's feet clean is important, maintaining dryness is paramount for skin integrity. Choices (A), (C), and (D) are incorrect: (A) removing the basin of water immediately may disrupt the care process without addressing the root issue, (C) advising the UAP that the procedure is damaging to the skin is not as immediate or specific to the observed problem, and (D) adding skin cream to the water may not address the need for drying the client's toes thoroughly.
3. The nurse is administering a new medication to a client. What is the priority action before administering the drug?
- A. Verify the client's allergies
- B. Check the client's blood pressure
- C. Assess the client's pain level
- D. Provide client education on the medication
Correct answer: A
Rationale: Verifying the client's allergies is the priority action before administering any medication. It is crucial to identify any known allergies to prevent potential allergic reactions, which can be severe and life-threatening. Checking the client's blood pressure, assessing pain levels, and providing education on the medication are important aspects of client care but verifying allergies is essential for ensuring the safety of the client.
4. Which of the following organelles is known as the cell's transportation center?
- A. Golgi apparatus
- B. Endoplasmic reticulum
- C. Mitochondria
- D. Lysosomes
Correct answer: B
Rationale: The correct answer is B, Endoplasmic reticulum. The endoplasmic reticulum is involved in the synthesis and transport of proteins and lipids within the cell. The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for transport. Mitochondria are known as the powerhouse of the cell, producing energy in the form of ATP. Lysosomes are involved in the digestion and recycling of cellular waste.
5. An adolescent who was diagnosed with diabetes mellitus Type 1 at the age of 9 is admitted to the hospital in diabetic ketoacidosis. Which occurrence is the most likely cause of ketoacidosis?
- A. Had a cold and ear infection for the past two days
- B. Missed a dose of insulin
- C. Did not follow dietary restrictions
- D. Overexerted during exercise
Correct answer: A
Rationale: The correct answer is A. Infections, like a cold and ear infection, increase the body's metabolic needs and insulin resistance, making diabetic ketoacidosis (DKA) more likely. While missing insulin doses or not following dietary restrictions can trigger DKA, an illness is the most common precipitating factor in pediatric Type 1 diabetes. Option B is less likely as missing insulin can lead to hyperglycemia but might not be the immediate cause of ketoacidosis. Option C can contribute to DKA over time, but the acute trigger is usually an illness. Option D, overexertion during exercise, is less likely to cause DKA compared to an infection.