Nokea
The new nurse describes the action of TCAs as relieving symptoms of depression by inhibiting neuronal uptake of the neurotransmitters serotonin and norepinephrine. Place an X on the labeled site where the new nurse is stating that inhibition takes place.
- A. Axon of the presynaptic neuron
- B. Rceptor site
- C. Inactivator
- D. Neurotransmitor
- E. Mitochondrion
Correct Answer: B
Rationale: Neuronal uptake of neurotransmitters occurs at the receptor sites on the postsynaptic neuron. [Image-based question; X placed on postsynaptic receptor sites.]
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The 8-year-old child with gastroenteritis is prescribed to receive 500 mL of lactated Ringer's (LR) solution over the next 10 hours. How many milliliters per hour should the nurse administer?
Correct Answer: 50
Rationale: 500 mL / 10 hr = 50 mL/hr
The nurse is performing a health history on the child with ADHD who is being evaluated for treatment with psychostimulants. Which information is most critical to collect prior to treatment with psychostimulants?
- A. Musculoskeletal history
- B. Genitourinary history
- C. Immunization history
- D. Cardiovascular history
Correct Answer: D
Rationale: Cardiovascular history is critical due to contraindications of psychostimulants in certain CV conditions.
The client undergoing detoxification from chronic alcohol abuse is to receive Phenobarbital 120 mg IM and promethazine 50 mg IM. Which explanation by the nurse about using this medication combination is correct?
- A. Promethazine will prevent a potential allergic reaction to the phenobarbital.
- B. Combining promethazine and phenobarbital will have a greater sedative effect.
- C. Promethazine will decrease the nausea from phenobarbital when it is given IM.
- D. Combining these reduces the sedative effects and prevents a ‘hangover' feeling.
Correct Answer: B
Rationale: Promethazine (Phenergan) potentiates the CNS depression of phenobarbital, producing a greater sedative effect.
The nurse is preparing to administer a pm dose of benztropine to the client with worsening akathisia. The client's medication record lists benztropine 0.5 mg IM q4h pm. The vial contains 1 mg/mL. How many milliliters of the medication should the nurse administer?
Correct Answer: 0.5
Rationale: Calculation: 0.5 mg/ 1 mg/mL = 0.5 mL.
The LPN is performing an assessment on a 4-day-old 8-pound, 6-ounce newborn with a head circumference of 33 cm. Given this information, what would the nurse expect the child's chest circumference to be?
- A. about 31 cm
- B. about 36 cm
- C. about 29 cm
- D. about 33 cm
Correct Answer: A
Rationale: In newborns, the head circumference should be 2 cm to 3 cm larger than the chest circumference. Note: Due to molding that occurs during the birth process, the head and chest measurement may be nearly equal during the first 48 hours after birth.