HESI RN
Biology Practice Test
1. Where can ribosomes be found inside a cell?
- A. Attached to the endoplasmic reticulum (ER) and in the cytoplasm
- B. Within the cellular membrane
- C. Attached to the Golgi apparatus and in the cytoplasm
- D. Within the nucleus
Correct answer: A
Rationale: Ribosomes can be found attached to the endoplasmic reticulum (ER) or free-floating in the cytoplasm. The correct answer is A because ribosomes are responsible for synthesizing proteins and are commonly found on the ER or in the cytoplasm. Choice B is incorrect because ribosomes are not typically located within the cellular membrane. Choice C is incorrect as ribosomes are not attached to the Golgi apparatus; instead, they are involved in protein synthesis. Choice D is incorrect as ribosomes are not found within the nucleus but rather in the cytoplasm or attached to the ER.
2. A client with type 1 DM is experiencing signs of hypoglycemia. The nurse should expect which of the following symptoms?
- A. Tachycardia
- B. Polyuria
- C. Flushed skin
- D. Dry mouth
Correct answer: A
Rationale: In a client experiencing hypoglycemia, tachycardia is a common symptom. This occurs due to the release of adrenaline in response to low blood glucose levels, which stimulates the heart to beat faster. Polyuria, the increased production of urine, flushed skin, and dry mouth are not typical symptoms of hypoglycemia. Polyuria is more commonly associated with conditions like diabetes insipidus or uncontrolled diabetes mellitus. Flushed skin and dry mouth are not direct physiological responses to low blood sugar levels.
3. A male client with type 1 diabetes mellitus asks the nurse about taking an oral antidiabetic agent. Nurse Jack explains that these medications are only effective if the client:
- A. Prefers to take insulin orally.
- B. Has type 2 diabetes.
- C. Has type 1 diabetes.
- D. Is pregnant and has type 2 diabetes.
Correct answer: B
Rationale: Oral antidiabetic agents are specifically designed for type 2 diabetes mellitus. Type 1 diabetes requires insulin therapy as the primary treatment due to the absence of endogenous insulin production. Therefore, these medications are not effective for individuals with type 1 diabetes like the male client in this scenario. Choice A is incorrect as oral antidiabetic agents are not about preference but rather about treatment efficacy. Choice D is incorrect as being pregnant does not impact the effectiveness of oral antidiabetic agents; they are primarily indicated for type 2 diabetes.
4. When teaching a male client diagnosed with type 1 diabetes mellitus how diet and exercise affect insulin requirements, Nurse Joy should include which guideline?
- A. You'll need more insulin when you exercise or increase your food intake.
- B. You'll need less insulin when you exercise or reduce your food intake.
- C. You'll need less insulin when you increase your food intake.
- D. You'll need more insulin when you exercise or decrease your food intake.
Correct answer: B
Rationale: When a person with type 1 diabetes exercises, it typically lowers blood glucose levels. As a result, insulin needs are reduced when exercise or food intake is decreased. Choice A is incorrect because more insulin is not typically needed when exercise or food intake is increased. Choice C is incorrect because increasing food intake would generally require more insulin to cover the additional glucose from the food. Choice D is incorrect as decreasing food intake usually leads to a lower need for insulin.
5. The client is admitted in active labor with a cervix that is 3 cm dilated, 50% effaced, and the presenting part at 0 station. An hour later, the client expresses the need to go to the bathroom. Which action should the nurse implement first?
- A. Palpate the client’s bladder.
- B. Check the pH of the vaginal fluid.
- C. Review the fetal heart rate pattern.
- D. Determine cervical dilation.
Correct answer: D
Rationale: The nurse should prioritize determining cervical dilation as it helps in assessing the progress of labor and ensures it is safe for the client to move. Changes in cervical dilation may indicate the advancement of labor, warranting appropriate interventions or restrictions on movement to prevent complications. While checking the client's bladder may be important to ensure it's not distended, determining cervical dilation takes precedence in this scenario. Checking the pH of the vaginal fluid is not relevant in this situation, and reviewing the fetal heart rate pattern, although important, is not the first action to take when the client expresses the need to go to the bathroom.