HESI RN
HESI Pharmacology Quizlet
1. A client with portosystemic encephalopathy is receiving oral lactulose (Chronulac) daily. The nurse assesses which of the following to determine medication effectiveness?
- A. Lung sounds
- B. Blood pressure
- C. Blood ammonia level
- D. Serum potassium level
Correct answer: C
Rationale: In portosystemic encephalopathy, the liver's ability to detoxify ammonia is impaired, leading to elevated blood ammonia levels, which can cause neurological symptoms such as encephalopathy. Lactulose is given to reduce ammonia levels by promoting its excretion through the bowel. Therefore, assessing the blood ammonia level is crucial to determine the effectiveness of lactulose therapy in managing portosystemic encephalopathy.
2. The Gravindex test is used to detect Human Chorionic Gonadotrophic hormone (HCG) in:
- A. Urine or whole blood
- B. Amniotic fluid
- C. Saliva
- D. Cervical mucus
Correct answer: A
Rationale: The correct answer is A: Urine or whole blood. The Gravindex test is designed to detect Human Chorionic Gonadotrophic hormone (HCG) in urine or whole blood samples. HCG is a hormone produced during pregnancy, and its presence in urine or blood can indicate pregnancy. Choices B, C, and D are incorrect as the Gravindex test is not intended to detect HCG in amniotic fluid, saliva, or cervical mucus. These bodily fluids are not typically used for pregnancy testing purposes.
3. The nurse is teaching a male client with multiple sclerosis how to empty his bladder using the Crede Method. When performing a return demonstration, the client applies pressure to the umbilical areas of his abdomen. What instruction should the nurse provide?
- A. Stroke the inner thigh below the perineum to initiate urinary flow
- B. Contract, hold, and then relax the pubococcygeal muscle
- C. Pour warm water over the external sphincter at the distal glans
- D. Apply downward manual pressure at the suprapubic regions
Correct answer: D
Rationale: The client is applying pressure in the wrong region (umbilical area) and should be instructed to apply pressure at the suprapubic area. Applying downward manual pressure at the suprapubic region helps in emptying the bladder effectively by assisting in pushing the urine out through the urethra. Choices A, B, and C are incorrect because they do not address the specific issue of applying pressure to help empty the bladder using the Crede Method.
4. The nurse is administering an IV medication to a client with a history of anaphylaxis. Which intervention is most important for the nurse to implement?
- A. Stay with the client throughout the infusion.
- B. Keep emergency resuscitation equipment at the bedside.
- C. Obtain the client's allergy history.
- D. Ask the client about past allergic reactions to medications.
Correct answer: B
Rationale: Keeping emergency resuscitation equipment at the bedside is crucial in case the client experiences anaphylaxis during the infusion. While staying with the client throughout the infusion (Choice A) is important, having immediate access to emergency equipment takes priority in this situation. Obtaining the client's allergy history (Choice C) and asking about past allergic reactions to medications (Choice D) are relevant but do not address the immediate need for emergency intervention in case of anaphylaxis.
5. Which of the following best describes phenotype?
- A. The hereditary potentials and limitations of an individual
- B. The genetic makeup of an individual organism
- C. The entire complex of genes inherited from both parents
- D. All the observable characteristics of an organism
Correct answer: D
Rationale: The correct answer is D: 'All the observable characteristics of an organism.' Phenotype refers to all the observable characteristics of an organism, such as physical appearance, behavior, and other traits, which result from the interaction of its genotype with the environment. Choice A is incorrect because it describes genotype. Choice B is incorrect as it defines genotype, not phenotype. Choice C is incorrect as it refers to the genotype, the genetic information inherited from both parents, rather than the observable traits.