HESI RN
Biology Test
1. During photosynthesis in green plants, light energy is captured and used to convert all except which of the following into oxygen and energy-rich organic compounds?
- A. Minerals
- B. Water
- C. Carbon dioxide
- D. Metals
Correct answer: D
Rationale: During photosynthesis in green plants, light energy is utilized to convert water and carbon dioxide into oxygen and energy-rich organic compounds like glucose. Minerals play a role in plant growth but are not directly converted during photosynthesis. Metals are not part of the photosynthesis process, making them the correct answer. Therefore, the correct choice is D. Choices A, B, and C are incorrect as minerals, water, and carbon dioxide are involved in the photosynthesis process.
2. A middle-aged adult with a family history of CAD has the following: total cholesterol 198 (11 mmol/L); LDL cholesterol 120 (6.7 mmol/L); HDL cholesterol 58 (3.2 mmol/L); triglycerides 148 (8.2 mmol/L); blood sugar 102 (5.7 mmol/L); and C-reactive protein (CRP) 4.2. The health care provider prescribes a statin medication and aspirin. The client asks the nurse why these medications are needed. Which is the best response by the nurse?
- A. The labs indicate severe hyperlipidemia and the medications will lower your LDL, along with a low-fat diet.
- B. The triglycerides are elevated and will not return to normal without these medications.
- C. The CRP is elevated indicating inflammation seen in cardiovascular disease, which can be lowered by the medications prescribed.
- D. These medications will reduce the risk of type 2 diabetes.
Correct answer: C
Rationale: CRP is a marker of inflammation, which is elevated in cardiovascular disease. Statins and aspirin help lower CRP and reduce the risk of heart attacks and strokes.
3. When does a broad ligament haematoma occur?
- A. Rupture occurs in the mesenteric border of the tube.
- B. Rupture occurs in the ovarian ligament.
- C. Rupture occurs in the broad ligament.
- D. Rupture occurs in the uterine wall.
Correct answer: A
Rationale: A broad ligament hematoma occurs when there is a rupture in the mesenteric border of the tube. This typically happens due to trauma or other underlying conditions. Choices B, C, and D are incorrect because a broad ligament hematoma specifically involves a rupture in the mesenteric border of the tube, not the ovarian ligament, broad ligament, or uterine wall.
4. A client receiving warfarin (Coumadin) therapy should have which of the following laboratory results reviewed to evaluate the effectiveness of the therapy?
- A. Complete blood count (CBC).
- B. Prothrombin time (PT).
- C. International normalized ratio (INR).
- D. Partial thromboplastin time (PTT).
Correct answer: C
Rationale: The correct answer is C: International normalized ratio (INR). The INR is the most appropriate laboratory result to review when evaluating the effectiveness of warfarin (Coumadin) therapy. Warfarin is an anticoagulant medication, and the INR helps determine if the dosage is within a therapeutic range to prevent clotting or bleeding complications. Choice A, a Complete Blood Count (CBC), provides information about the cellular components of blood but does not directly assess the anticoagulant effects of warfarin. Choice B, Prothrombin time (PT), measures the time it takes for blood to clot but is not as specific for monitoring warfarin therapy as the INR. Choice D, Partial Thromboplastin Time (PTT), evaluates the intrinsic pathway of coagulation and is not the primary test used to monitor warfarin therapy.
5. Which of the following is a common cause of chronic liver disease?
- A. Alcohol abuse.
- B. Hepatitis C infection.
- C. Obesity.
- D. Smoking.
Correct answer: B
Rationale: Hepatitis C infection is a common cause of chronic liver disease due to its long-term effects on the liver. Hepatitis C can lead to liver inflammation, fibrosis, cirrhosis, and even liver cancer. Alcohol abuse can also cause liver damage, but hepatitis C infection is specifically known for its chronic impact on liver health. Obesity and smoking, while detrimental to overall health, are not typically direct causes of chronic liver disease like hepatitis C infection.