Nursing Elites

1. Following an automobile accident that caused a head injury to an adult client, the nurse observes that the client sleeps for long periods of time. The nurse determines that the client has experienced injury to the:

• A. hypothalamus.
• B. thalamus.
• C. cortex.
• D. medulla.

Correct answer: A

Rationale: The hypothalamus is responsible for regulating sleep patterns among other functions. Injury to the hypothalamus can disrupt the sleep-wake cycle, leading to excessive sleepiness or changes in sleep patterns. Choices B, C, and D are incorrect as they do not primarily control sleep regulation. The thalamus is involved in relaying sensory information, the cortex is responsible for higher brain functions, and the medulla controls vital functions such as heartbeat and breathing.

2. Which of the following neurological disorders is characterized by writhing, twisting movements of the face and limbs?

• A. epilepsy
• B. Parkinson's
• C. multiple sclerosis
• D. Huntington's chorea

Correct answer: D

Rationale: Huntington's chorea is a neurological disorder characterized by writhing, twisting movements of the face and limbs, known as chorea. Epilepsy is characterized by seizures, not writhing, twisting movements. Parkinson's disease presents with tremors, rigidity, and bradykinesia, not writhing, twisting movements. Multiple sclerosis affects the central nervous system but does not typically involve writhing, twisting movements. Therefore, the correct answer is Huntington's chorea as it specifically manifests with these characteristic movements.

3. What is a common side effect of Rifampin concerning the client's contact lenses?

• A. The client's urine might turn blue.
• B. The client remains infectious to others for 48 hours.
• C. The client's contact lenses might be stained orange.
• D. The client's skin might take on a crimson glow.

Correct answer: C

Rationale: The correct answer is that the client's contact lenses might be stained orange. Rifampin has the unusual effect of turning body fluids an orange color. Soft contact lenses might become permanently stained, making this an important side effect for the client to be aware of. Choices A, B, and D are incorrect. There is no documented effect of Rifampin causing the client's urine to turn blue, the client remaining infectious for 48 hours, or the client's skin taking on a crimson glow.

4. Which hormone in the urine is specifically indicative of pregnancy?

• A. estrogen
• B. progesterone
• C. testosterone
• D. human chorionic gonadotropin

Correct answer: D

Rationale: Human chorionic gonadotropin is the hormone specifically indicative of pregnancy as it is produced by the placenta after implantation. It can be detected in urine and blood samples to confirm pregnancy. Estrogen and progesterone play crucial roles in the menstrual cycle and pregnancy but are not specific indicators of pregnancy on their own. Testosterone is a hormone primarily associated with male reproductive functions and is not directly related to pregnancy, making it an incorrect choice in this context.

5. A client with which of the following conditions is at risk for developing a high ammonia level?

• A. renal failure
• B. psoriasis
• C. lupus
• D. cirrhosis

Correct answer: D

Rationale: Cirrhosis is the correct answer. In cirrhosis, the liver is unable to detoxify ammonia to urea, leading to an accumulation of ammonia in the blood. This can result in hepatic encephalopathy, a condition characterized by high ammonia levels affecting brain function. Renal failure (Choice A), psoriasis (Choice B), and lupus (Choice C) are not directly associated with an increased risk of high ammonia levels as seen in cirrhosis.

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