HESI RN
Biology Test
1. Which organelle is responsible for the synthesis of lipids and steroid hormones?
- A. Rough endoplasmic reticulum
- B. Smooth endoplasmic reticulum
- C. Golgi apparatus
- D. Ribosomes
Correct answer: B
Rationale: The smooth endoplasmic reticulum is the correct organelle responsible for the synthesis of lipids, including phospholipids, cholesterol, and steroid hormones. The rough endoplasmic reticulum is primarily involved in protein synthesis and processing, making choice A incorrect. The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for transportation, so it is not directly involved in lipid and steroid hormone synthesis, making choice C incorrect. Ribosomes are responsible for protein synthesis and are not involved in lipid or steroid hormone synthesis, making choice D incorrect.
2. A client with a history of alcohol abuse is admitted with cirrhosis. Which finding requires immediate intervention?
- A. Jaundice.
- B. Ascites.
- C. Peripheral edema.
- D. Spider angiomas.
Correct answer: C
Rationale: Peripheral edema in a client with cirrhosis can indicate fluid overload and worsening liver function, necessitating immediate intervention to prevent further complications such as respiratory distress, cardiac issues, or renal impairment. Jaundice (choice A) is a common manifestation of cirrhosis but may not require immediate intervention unless severe. Ascites (choice B) is also a common complication of cirrhosis that may require intervention but is not as urgent as addressing peripheral edema. Spider angiomas (choice D) are typically benign skin lesions associated with cirrhosis but do not require immediate intervention unless bleeding or rupture occurs.
3. A client's urinalysis results show a urine osmolality of 1200 mOsm/L. What action should the nurse take?
- A. Encourage the client to drink more fluids.
- B. Contact the provider and recommend a low-sodium diet.
- C. Prepare to administer an intravenous diuretic.
- D. Obtain a suction device and implement seizure precautions.
Correct answer: A
Rationale: The correct action for the nurse to take when the client has a urine osmolality of 1200 mOsm/L, indicating dehydration, is to encourage the client to drink more fluids. Dehydration can lead to elevated urine osmolality, and increasing fluid intake can help rehydrate the client. A low-sodium diet is not the priority in this scenario as it would not directly address the dehydration indicated by the high urine osmolality. Administering an intravenous diuretic would further concentrate the urine, exacerbating the dehydration. Obtaining a suction device and implementing seizure precautions are not indicated based on the client's urine osmolality results and would not address the underlying issue of dehydration.
4. Which client has the highest risk for developing community-acquired pneumonia?
- A. a 40-year-old first-grade teacher who works with underprivileged children
- B. a 75-year-old retired secretary with exercise-induced wheezing
- C. a 60-year-old homeless person who is an alcoholic and smokes
- D. a 35-year-old aerobics instructor who skips meals and eats only vegetables
Correct answer: C
Rationale: The correct answer is C, a 60-year-old homeless person who is an alcoholic and smokes. This client has the highest risk of developing community-acquired pneumonia due to multiple factors such as homelessness, substance abuse, and smoking. Homelessness can lead to poor living conditions and limited access to healthcare, increasing susceptibility to infections. Alcoholism and smoking weaken the immune system, making individuals more vulnerable to respiratory infections like pneumonia. Choices A, B, and D do not present the same level of risk factors for pneumonia compared to choice C.
5. A client is prescribed alendronate (Fosamax) for the treatment of osteoporosis. Which instruction should the nurse provide to the client?
- A. Take the medication at bedtime.
- B. Take the medication with a full glass of water.
- C. Lie down for 30 minutes after taking the medication.
- D. Take the medication with food to avoid gastrointestinal upset.
Correct answer: B
Rationale: The correct instruction for a client prescribed alendronate (Fosamax) for osteoporosis is to take the medication with a full glass of water first thing in the morning. It should be taken at least 30 minutes before any food, beverage, or other medication. The client should also remain upright for at least 30 minutes after taking the medication to prevent esophageal irritation. Taking alendronate at bedtime or with food is not recommended as it may reduce its absorption and effectiveness.