A nurse is preparing to administer hydralazine to a client with pre-eclampsia who has a blood pressure of 180/110 mmHg.
What is the rationale for using this medication?
It reduces cerebral edema and prevents seizures
It increases uteroplacental perfusion and fetal oxygenation
It decreases proteinuria and prevents renal damage
It relaxes smooth muscle and lowers blood pressure
The Correct Answer is D
This is the rationale for using this medication in a client with pre-eclampsia who has a blood pressure of 180/110 mmHg. High blood pressure in pre-eclampsia can cause damage to the kidneys, liver, brain, and other organs, and can also increase the risk of complications for the baby.
Therefore, lowering blood pressure with hydralazine can help prevent or reduce these adverse outcomes.
Choice A is wrong because hydralazine does not reduce cerebral edema or prevent seizures. These are symptoms of eclampsia, a more severe form of pre-eclampsia that requires different treatment.
Choice B is wrong because hydralazine does not increase uteroplacental perfusion or fetal oxygenation. These are affected by other factors such as the placental function, maternal position, and fetal well-being.
Choice C is wrong because hydralazine does not decrease proteinuria or prevent renal damage.
Proteinuria is a sign of kidney impairment that occurs in pre-eclampsia, but it is not directly affected by hydralazine. Renal damage can be prevented by controlling blood pressure and avoiding nephrotoxic drugs.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This is because HELLP syndrome is a complication of pregnancy that affects the liver and blood clotting.It can cause liver damage, bleeding problems, and high blood pressure.Epigastric pain or right upper quadrant pain is a sign of liver injury or rupture.
Choice B is wrong because blurred vision or flashes of light are symptoms of preeclampsia, not HELLP syndrome.
Preeclampsia is a condition that causes high blood pressure and protein in the urine during pregnancy.It can lead to HELLP syndrome, but not all women with preeclampsia develop HELLP syndrome.
Choice C is wrong because decreased urinary output or oliguria are also symptoms of preeclampsia, not HELLP syndrome.
Oliguria means producing less than 400 mL of urine in 24 hours.It can indicate kidney damage or failure due to high blood pressure or proteinuria.
Choice D is wrong because hyperreflexia or clonus are also symptoms of preeclampsia, not HELLP syndrome.
Hyperreflexia means having exaggerated reflexes, while clonus means having involuntary muscle spasms.
They can indicate nervous system involvement or seizures due to high
Correct Answer is A
Explanation
The most likely explanation for the client's findings of severe headache, blurred vision, hyperreflexia, and clonus in the context of severe pre-eclampsia is A. Cerebral edema.
Pre-eclampsia is a pregnancy-related condition characterized by high blood pressure (hypertension) and signs of organ damage, most commonly affecting the liver and kidneys. Severe pre-eclampsia can lead to complications such as eclampsia, which is characterized by seizures. The symptoms described by the client, including severe headache and blurred vision, are consistent with neurological manifestations associated with severe pre-eclampsia.
Hyperreflexia refers to an exaggerated reflex response, and clonus refers to rhythmic contractions of a muscle when it is passively stretched. Both hyperreflexia and clonus are indicative of central nervous system (CNS) hyperexcitability. Cerebral edema, which is the swelling of the brain due to fluid accumulation, can lead to increased intracranial pressure and neurological symptoms such as headache, vision changes, hyperreflexia, and clonus.
While other complications such as pulmonary edema (B), hemolysis (C), and thrombocytopenia (D) can occur in severe pre-eclampsia, they are not directly associated with the reported symptoms of severe headache, blurred vision, hyperreflexia, and clonus.
Pre-eclampsia is a pregnancy-related condition characterized by high blood pressure (hypertension) and signs of organ damage, most commonly affecting the liver and kidneys. Severe pre-eclampsia can lead to complications such as eclampsia, which is characterized by seizures. The symptoms described by the client, including severe headache and blurred vision, are consistent with neurological manifestations associated with severe pre-eclampsia.
Hyperreflexia refers to an exaggerated reflex response, and clonus refers to rhythmic contractions of a muscle when it is passively stretched. Both hyperreflexia and clonus are indicative of central nervous system (CNS) hyperexcitability. Cerebral edema, which is the swelling of the brain due to fluid accumulation, can lead to increased intracranial pressure and neurological symptoms such as headache, vision changes, hyperreflexia, and clonus.
While other complications such as pulmonary edema (B), hemolysis (C), and thrombocytopenia (D) can occur in severe pre-eclampsia, they are not directly associated with the reported symptoms of severe headache, blurred vision, hyperreflexia, and clonus.
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