HESI RN
Biology Test
1. Proteins are polymers of 20 molecules called:
- A. Amino acids
- B. Phospholipids
- C. Carbohydrates
- D. Fatty acids
Correct answer: A
Rationale: Proteins are indeed polymers made up of amino acids. Amino acids are the building blocks of proteins, where each protein has a unique sequence of amino acids that determines its structure and function. Phospholipids, carbohydrates, and fatty acids are not molecules that make up proteins. Phospholipids are the main components of cell membranes, carbohydrates are sugars used for energy and structural purposes, and fatty acids are building blocks of lipids.
2. When caring for a client with a chest tube, which intervention is most important to include in the plan of care?
- A. Maintain continuous suction on the chest tube.
- B. Clamp the chest tube during client movement.
- C. Ensure that the chest tube is clamped for at least 8 hours each day.
- D. Keep the collection chamber below the level of the chest.
Correct answer: D
Rationale: Keeping the collection chamber below the level of the chest is crucial in caring for a client with a chest tube. This positioning helps ensure proper drainage of fluids and prevents complications such as backflow of drainage into the chest cavity. Option A is incorrect as continuous suction can lead to excessive drainage and tissue damage. Option B is incorrect as clamping the chest tube during client movement can cause a buildup of pressure and compromise proper drainage. Option C is incorrect because clamping the chest tube for extended periods can impede the drainage process, leading to potential complications.
3. What might be suggested to a client with fibrocystic breasts in an attempt to help relieve symptoms?
- A. Increase intake of high-calcium foods in your diet
- B. Wear a supportive bra during the day and at night
- C. Take over-the-counter pain relievers
- D. Perform regular breast massage
Correct answer: B
Rationale: The correct answer is B: 'Wear a supportive bra during the day and at night.' Wearing a supportive bra is essential for individuals with fibrocystic breasts as it helps relieve discomfort by providing necessary support to reduce strain on breast tissue. Option A is incorrect as high-calcium foods are not directly related to symptom relief in fibrocystic breasts. Option C is not the first-line recommendation and may not address the underlying issue. Option D, performing regular breast massage, is not typically recommended and may not provide significant relief for fibrocystic breast symptoms.
4. The healthcare provider is teaching a client with hypertension about lifestyle modifications. Which instruction should the healthcare provider include?
- A. Limit sodium intake to 2,300 mg per day
- B. Engage in moderate exercise for 30 minutes daily
- C. Consume a diet high in saturated fats
- D. Avoid alcohol consumption completely
Correct answer: B
Rationale: Engaging in moderate exercise for 30 minutes daily is a crucial lifestyle modification for managing hypertension. Regular physical activity helps lower blood pressure, improve cardiovascular health, and overall well-being. It is recommended to engage in activities like brisk walking, cycling, or swimming to achieve these benefits. Choices A, C, and D are incorrect. Limiting sodium intake, avoiding a diet high in saturated fats, and reducing alcohol consumption are also important lifestyle modifications for hypertension management, but engaging in moderate exercise is the most appropriate initial instruction for this client.
5. A male client with an antisocial personality disorder is admitted to an inpatient mental health unit for multiple substance dependencies. When providing a history, the client justifies to the nurse his use of illicit drugs. Based on this pattern of behavior, this client's history is most likely to include which finding?
- A. Multiple convictions for misdemeanors and class B felonies.
- B. A history of stable employment
- C. Strong relationships with family members
- D. A pattern of seeking help when needed
Correct answer: A
Rationale: The correct answer is A: Multiple convictions for misdemeanors and class B felonies. Clients with antisocial personality disorder often engage in behaviors that disregard societal rules and norms, leading to legal issues and criminal activities. This behavior is characteristic of individuals with antisocial personality disorder. Choices B, C, and D are incorrect because individuals with this disorder are less likely to have stable employment, strong family relationships, or seek help when needed due to their pattern of defiance and disregard for authority and rules.