Once phosphorylated, the intracellular segment of a receptor tyrosine kinase
- A. Activates adenylate cyclase
- B. Causes dissociation of the ligand from an allosteric binding site
- C. Terminates intracellular signaling cascades
- D. Allows docking of intracellular proteins involved in signal transduction
Correct Answer: D
Rationale: Phosphorylation enables docking of signaling proteins, initiating transduction cascades.
You may also like to solve these questions
Nicotine gum products are:
- A. Chewed to release the nicotine and then swallowed for a systemic effect
- B. Parked' in the buccal area of the mouth to produce a constant amount of nicotine release
- C. Bound to exchange resins so the nicotine is only released during chewing
- D. Approximately the same in nicotine content as smoking two cigarettes
Correct Answer: B
Rationale: Nicotine gum is parked buccally for steady release.
While studying for the test, the nursing student encounters the following drug: papaverine (Pavabid). What does the nursing student identify the name Pavabid as?
- A. The generic name
- B. The chemical name
- C. The brand name
- D. The chemical and generic name
Correct Answer: C
Rationale: Several clues indicate the brand name including capitalization of the first letter in the name and in parentheses. Generic names are not capitalized; chemical names are descriptions of the chemistry of the medication resulting in complicated names.
A 12-month-old child just received the first measles, mumps, and rubella (MMR) vaccine. For which of the following possible reactions to this vaccine should the nurse teach the parents to monitor? (Select all that apply.)
- A. Bleeding
- B. Swollen glands
- C. Bruising
- D. Headache
Correct Answer: B
Rationale: Rash and swollen glands are common MMR reactions; bruising and headache are less typical.
A nurse is teaching a client who has Angina Pectoris and is learning how to treat acute Anginal attacks. The clients asks, What is my next step if I take one tablet, wait 5 minutes, but still have Anginal pain? Which of the following responses should the nurse make?
- A. Take two more sublingual tablets at the same time.
- B. Call the emergency response team.
- C. Take a sustained-release nitroglycerin capsule.
- D. Wait another 5 minutes then take a second sublingual tablet.
Correct Answer: B
Rationale: If pain persists after one dose, call emergency services ; protocol is up to 3 doses 5 minutes apart.
Which of the following would be most important for the nurse to do to ensure the safe use of prescription drugs in the institutional setting?(Select one that does not apply.)
- A. Administering drugs
- B. Monitoring clients for drug effects
- C. Prescribing drugs
- D. Evaluating clients for toxic effects
Correct Answer: C
Rationale: In the institutional setting, the nurse's role to ensure safe use of prescription drugs includes administering drugs, monitoring drug effects, evaluating for toxic effects, and educating clients and caregivers about drugs.
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