Nokea
A client undergoes arthrography for an examination of the knee. What information should the nurse provide to the client?
- A. Expect crackling or clicking noises in the joint for up to 2 days.
- B. Expect fever, nausea, and vomiting for up to 2 days.
- C. Avoid dairy products for up to 2 days.
- D. Avoid potassium-rich foods for up to 2 days.
Correct Answer: A
Rationale: Crackling or clicking noises are common after arthrography due to the contrast medium used.
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The terminal buttons of a neuron are located at the end of its:
- A. axon
- B. dendrite
- C. myelin sheath
- D. nodes of ranvier
Correct Answer: A
Rationale: Terminal buttons, also known as synaptic terminals, are located at the end of a neuron's axon. They contain vesicles filled with neurotransmitters, which are released into the synaptic cleft when an action potential reaches the terminal. These neurotransmitters then bind to receptors on the dendrites of adjacent neurons, facilitating communication between neurons. Terminal buttons are essential for transmitting signals across synapses.
Name the system that controls every activity that you do?
- A. Nervous System
- B. Exocrine System
- C. Endocrine System
- D. Respiratory System
Correct Answer: A
Rationale: The nervous system is the correct answer because it controls all voluntary and involuntary activities in the body. It consists of the central nervous system (brain and spinal cord) and the peripheral nervous system (nerves), which work together to process information and generate responses.
Select the correct etiology to complete this nursing diagnosis for a patient diagnosed with dissociative identity disorder: Disturbed personal identity, related to:
- A. obsessive fears of harming self or others.
- B. poor impulse control and lack of self-confidence.
- C. depressed mood secondary to nightmares and intrusive thoughts.
- D. cognitive distortions associated with unresolved childhood abuse issues.
Correct Answer: D
Rationale: The correct answer is D because dissociative identity disorder (DID) is often linked to unresolved childhood abuse issues, leading to fragmentation of identity as a coping mechanism. This is supported by research showing a high prevalence of childhood trauma among individuals with DID. Option A is incorrect because it relates more to anxiety disorders. Option B is incorrect as it describes traits more associated with personality disorders. Option C is incorrect as it pertains to mood disorders like depression, which are not the primary etiology of DID.
The substance that is released at axonal endings to propagate a nervous impulse is called:
- A. an ion
- B. nerve glue
- C. a neurotransmitter
- D. the sodium-potassium pump
Correct Answer: C
Rationale: Neurotransmitters are chemical substances released at axonal endings to propagate nervous impulses across synapses. Ions and the sodium-potassium pump are involved in generating action potentials, while nerve glue and action potentials are not substances released at axonal endings. Thus, C is the correct answer.
The nurse is caring for a patient who is scheduled for a computed tomography (CT) scan of the brain because of new onset of headaches. Which statement by the nurse is most accurate when preparing the patient for the scan?
- A. You must shampoo your hair thoroughly tonight to remove oil and dirt.
- B. You will need to hold your head completely still during the examination.
- C. You may take fluids until about 8 a.m. Then we will give you a special radiopaque drink.
- D. We will partially shave your head tonight so that electrodes can be attached securely to your scalp.
Correct Answer: B
Rationale: Holding the head still during a CT scan is essential for obtaining clear images. Shampooing the hair, shaving the head, or administering a radiopaque drink are not required for a standard brain CT. Providing accurate instructions ensures the patient is prepared for the procedure.