HESI RN CAT Exit Exam

Correct Answer: A

Rationale: The correct answer is A: Chromosomal abnormalities are the most common cause of early spontaneous abortions. Spontaneous abortions, also known as miscarriages, often occur due to chromosomal abnormalities in the fetus. These abnormalities are a common cause of early pregnancy loss. Choice B is incorrect because an incompetent cervix typically leads to late miscarriages, not early spontaneous abortions. Choice C is incorrect as while infections can be a cause of spontaneous abortions, they are not the most common cause. Choice D is incorrect as nutritional deficiencies are not the most common cause of early spontaneous abortions.

Correct Answer: C

Rationale: The most important information for the nurse to provide a client with chronic kidney disease is to report any weight gain of more than 2 pounds in a day. This is crucial because sudden weight gain can indicate fluid retention, which is a common issue in kidney disease. Monitoring daily weights, as in option A, is important but not as critical as reporting sudden weight gain. Option B, limiting fluid intake, is a general recommendation for kidney disease but not the most important aspect in this scenario. Option D, increasing protein intake, is not appropriate as excessive protein intake can be harmful for clients with kidney disease.

Correct Answer: B

Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.

Correct Answer: C

Rationale: The correct answer is C: Select a large, deep muscle mass. When administering an intramuscular injection with a painful medication volume of 3 ml, selecting a large and deep muscle mass is crucial. This intervention reduces discomfort for the patient and ensures proper absorption of the medication. Choice A is incorrect because instilling the medication quickly can increase discomfort. Choice B is incorrect as inserting the needle slowly may prolong the discomfort. Choice D is incorrect as using a short, small gauge needle may not be suitable for delivering 3 ml of medication effectively into the muscle.

Correct Answer: D

Rationale: A Glasgow Coma Scale of 3 indicates severe neurological impairment, suggesting a deep coma or even impending death. This client's condition is critical, and he has a very poor prognosis. Choice A is incorrect because a GCS of 3 does not directly indicate increased intracranial pressure. Choice B is incorrect as a GCS of 3 signifies a grave neurological status. Choice C is incorrect as a GCS of 3 represents a state of unconsciousness rather than being conscious but disoriented.