A nurse places a newborn under a radiant heat warmer after birth. The purpose of this action is to prevent which of the following in the newborn?

Basal metabolic rate reduction.

Brown fat production.

Shivering.

Cold stress.

Answer and Explanation

The Correct Answer is D

Choice A reason:

Basal metabolic rate reduction. This is incorrect because a newborn under a radiant heat warmer will have an increased basal metabolic rate, not a reduced one. The basal metabolic rate is the amount of energy the body uses at rest, and it is influenced by temperature. A warmer environment will stimulate the newborn's metabolism and increase the energy expenditure. • Choice B reason:

Brown fat production. This is incorrect because a newborn under a radiant heat warmer will have less need for brown fat production, not more. Brown fat is a type of fat tissue that generates heat by burning calories. It is found in newborns and helps them maintain their body temperature in cold environments. A warmer environment will reduce the need for brown fat activation. • Choice C reason:

Shivering. This is incorrect because a newborn under a radiant heat warmer will not shiver, but shivering is not the main mechanism of heat production in newborns. Shivering is an involuntary contraction of muscles that generates heat by increasing metabolism. Newborns have limited ability to shiver because of their immature nervous system and low muscle mass. They rely more on brown fat and increased metabolic rate to produce heat. • Choice D reason:

Cold stress. This is correct because a newborn under a radiant heat warmer will prevent cold stress, which is a condition where the newborn's body temperature drops below normal and causes adverse effects. Cold stress can impair oxygen delivery, increase acidosis, decrease blood glucose, and increase the risk of infection and bleeding. A radiant heat warmer provides a neutral thermal environment for the newborn and prevents heat loss by radiation.

: 1 : 2 : 3 : 4.

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Correct Answer is B

Explanation

A. Nalbuphine (Nubain):Nalbuphine is an opioid agonist-antagonist, which can be used to treat moderate to severe pain. However, it is not specifically used to reverse the effects of fentanyl. Administering Nalbuphine could potentially complicate the situation by introducing another opioid into the system.

B. Naloxone (Narcan):Naloxone is an opioid antagonist that rapidly reverses the effects of opioids like fentanyl. It is the standard treatment for opioid overdose and can quickly restore normal respiration in a person whose breathing has slowed or stopped due to opioid use. This makes it the most appropriate drug to have readily available in this scenario.

C. Butorphanol (Stadol):Butorphanol is another opioid agonist-antagonist used for pain relief. Similar to Nalbuphine, it is not used to reverse opioid effects and could complicate the patient's condition by adding another opioid to the system.

D. Promethazine (Phenergan):Promethazine is an antihistamine used to treat nausea, vomiting, and allergies. It does not have any properties that would counteract the effects of fentanyl. Therefore, it would not be useful in reversing opioid-induced respiratory depression.

A. Fentanyl B. Meperidine. C. Morphine. D. Secobarbital. E. Secobarbital.

Correct Answer is A

Explanation

The question is about a client who has been in the latent phase of labor for 12 hours and wants some medication to help her rest. The nurse has to predict which medication the healthcare provider will prescribe. The choices are:. • A. Fentanyl: a synthetic opioid that is used for pain relief and sedation. It is fast-acting and potent, but can cause respiratory depression and nausea. • B. Meperidine: a synthetic opioid that is used for pain relief and sedation. It is less potent than fentanyl, but can cause seizures and serotonin syndrome. • C. Morphine: a natural opioid that is used for pain relief and sedation. It is less potent than fentanyl, but can cause respiratory depression and itching. • D. Secobarbital: a barbiturate that is used for sedation and anesthesia. It is not an opioid, but can cause respiratory depression and addiction.

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A nurse places a newborn under a radiant heat warmer after birth. The purpose of this action is to prevent which of the following in the newborn?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A woman received 50 mcg of fentanyl intravenously 1 hour before delivery. What drug should the nurse have readily available?

Correct Answer is B

Explanation

A client in latent phase of labor for the past 12 hours is requesting medication to help her rest.

Correct Answer is A

Explanation

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