HESI RN
Biology Practice Test
1. Which of the following options identifies the products of cell respiration?
- A. Water, carbon dioxide, and oxygen
- B. Glucose and oxygen
- C. Water, carbon dioxide, and adenosine triphosphate (ATP)
- D. Water, glucose, and oxygen
Correct answer: C
Rationale: The correct answer is C: 'Water, carbon dioxide, and adenosine triphosphate (ATP).' During cellular respiration, glucose is broken down in the presence of oxygen to produce water, carbon dioxide, and ATP. Choice A is incorrect as oxygen is not a product of cell respiration but a reactant. Choice B is incorrect as it lists glucose and oxygen, which are actually reactants in the process. Choice D is incorrect as glucose is not a product of cell respiration but a substrate that is broken down to release energy.
2. A client with a diagnosis of diabetic ketoacidosis (DKA) is being treated in the ER. Which finding would a nurse expect to note as confirming this diagnosis?
- A. Elevated blood glucose level and a low plasma bicarbonate
- B. Decreased urine output
- C. Increased respirations and an increase in pH
- D. Comatose state
Correct answer: A
Rationale: The correct answer is A: Elevated blood glucose level and a low plasma bicarbonate. Diabetic ketoacidosis (DKA) is characterized by hyperglycemia, ketosis, and metabolic acidosis, reflected by a low plasma bicarbonate. Elevated blood glucose levels are a hallmark of DKA due to the body's inability to use glucose properly. Choices B, C, and D are incorrect. Decreased urine output is not a specific finding associated with DKA. Increased respirations and an increase in pH are not typical in DKA; in fact, respiratory compensation for the metabolic acidosis in DKA leads to Kussmaul breathing (deep, rapid breathing). A comatose state may occur in severe cases of DKA but is not a confirming finding for the diagnosis.
3. Which nonverbal action should be implemented to demonstrate active listening?
- A. Sit facing the individual.
- B. Cross arms and legs.
- C. Avoid eye contact.
- D. Lean back in the chair.
Correct answer: A
Rationale: To demonstrate active listening effectively, it is essential to display open and engaging body language. Sitting facing the individual helps convey attentiveness and a willingness to listen. Maintaining eye contact further enhances the connection and shows respect and interest in the conversation. Crossing arms and legs can create a barrier and signal defensiveness or disinterest. Avoiding eye contact may suggest a lack of engagement or attentiveness. Leaning back in the chair can indicate relaxation but might be perceived as disengagement. Therefore, the most appropriate nonverbal action to demonstrate active listening is to sit facing the individual and maintain eye contact.
4. A female UAP is assigned to take the vital signs of a client with pertussis for whom droplet precautions have been implemented. The UAP requests a change in assignment because she has not yet been fitted for a particulate filter mask. Which action should the nurse take?
- A. Advise the UAP to wear a standard face mask to take vital signs and then get fitted for a filter mask before providing personal care.
- B. Send the UAP to be fitted for a particulate filter mask immediately so she can provide care to this client.
- C. Instruct the UAP that a standard mask is sufficient for the provision of care for the assigned client.
- D. Before changing assignments, determine which staff members have fitted particulate filter masks.
Correct answer: C
Rationale: The correct answer is C. For droplet precautions, such as in the case of pertussis, a standard face mask is sufficient for protection. Particulate filter masks are required for airborne precautions, not for droplet precautions. Therefore, the UAP can proceed with taking the vital signs using a standard mask without the need for a particulate filter mask. Choice A is incorrect because the UAP does not need to get fitted for a particulate filter mask before providing care in this situation. Choice B is incorrect as fitting for a particulate filter mask is not necessary for droplet precautions. Choice D is also incorrect because determining which staff members have fitted particulate filter masks is not relevant to the UAP's situation with the client on droplet precautions. It is important for healthcare workers to understand the appropriate use of personal protective equipment based on the type of precautions in place to provide safe and effective care to clients.
5. The client is 24 weeks gestation and reports increased thirst and urination. Which diagnostic test result should the nurse report to the healthcare provider?
- A. Hemoglobin A1C.
- B. Postprandial blood glucose test.
- C. Oral glucose tolerance test.
- D. Fasting blood glucose.
Correct answer: C
Rationale: An abnormal oral glucose tolerance test result is indicative of gestational diabetes. This test is crucial in diagnosing gestational diabetes as it evaluates how well the body processes glucose after a sugary drink. Reporting abnormal results promptly allows for timely intervention and management to ensure the well-being of both the mother and the baby. The other options are not the primary tests used to diagnose gestational diabetes. Hemoglobin A1C is not recommended for diagnosing gestational diabetes as it reflects long-term glucose control. Postprandial blood glucose and fasting blood glucose tests are not as sensitive as the oral glucose tolerance test for diagnosing gestational diabetes.