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A patient presents with progressive hearing loss, tinnitus, and vertigo. Audiometric testing reveals sensorineural hearing loss with a "carrot-shaped" configuration. Which of the following conditions is most likely responsible for this presentation?
- A. Presbycusis
- B. Noise-induced hearing loss
- C. Ménière's disease
- D. Acoustic neuroma
Correct Answer: C
Rationale: Ménière's disease is characterized by the triad of symptoms including progressive sensorineural hearing loss, tinnitus, and vertigo. The audiometric testing in Ménière's disease often shows a "carrot-shaped" configuration, which refers to low-frequency hearing loss initially and eventually spreading to involve higher frequencies. This distinctive pattern of hearing loss helps differentiate Ménière's disease from other causes like Presbycusis (age-related hearing loss) or Noise-induced hearing loss. Acoustic neuroma can present with unilateral sensorineural hearing loss but typically does not exhibit the specific "carrot-shaped" configuration seen in Ménière's disease.
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Nurse Bea reviewed the elements of nursing as a profession. Which of the following is an IMPORTANT element that characterizes Nursing as a profession ?
- A. Has members
- B. Possess body of knowledge
- C. Service oriented
- D. A calling
Correct Answer: B
Rationale: Possessing a body of knowledge is an important element that characterizes nursing as a profession. Nursing is a field that requires specialized education, training, and expertise in various areas of healthcare. Nurses are expected to have a comprehensive understanding of anatomy, physiology, pharmacology, and various nursing theories and practices to effectively care for patients. This body of knowledge distinguishes nursing as a profession and supports the delivery of high-quality, evidence-based patient care. While the other options (having members, being service-oriented, and a calling) are also important aspects of nursing, possessing a body of knowledge is fundamental to the profession's identity and practice.
If more than one vaccine is given, the following guidelines should be observed, EXCEPT.
- A. Do not give more than one dose of the same vaccine in one session.
- B. Do not use the same arm or leg for more than one injection.
- C. Give doses of the same vaccine at the correct intervals.
- D. Use the same syringe and needle in administering two vaccines.
Correct Answer: D
Rationale: It is NOT recommended to use the same syringe and needle in administering two different vaccines. This is to prevent contamination or mixing of different vaccines, which could potentially affect their effectiveness or pose a risk to the individual receiving the vaccines. It is important to use separate syringes and needles for each vaccine to ensure proper administration and prevent any adverse reactions.
A postpartum client presents with sudden, severe chest pain and dyspnea. Which nursing action is most appropriate?
- A. Placing the client in a semi-Fowler's position
- B. Administering supplemental oxygen therapy
- C. Notifying the healthcare provider immediately
- D. Encouraging the client to perform deep breathing exercises
Correct Answer: C
Rationale: Sudden, severe chest pain and dyspnea in a postpartum client could be indicative of a potential serious condition, such as a pulmonary embolism or postpartum cardiomyopathy, which require immediate medical attention. Therefore, the most appropriate nursing action would be to notify the healthcare provider immediately for further evaluation and management. Placing the client in a semi-Fowler's position may provide some comfort but does not address the underlying cause of the symptoms. Administering supplemental oxygen therapy may be necessary once the healthcare provider assesses the client. Encouraging deep breathing exercises may not be appropriate if the client is experiencing severe chest pain and dyspnea, as it could worsen the situation.
Which of the following organisms is the MOST common causative agent of urinary tract infection (UTI)?
- A. Staphylococcus
- B. Pseudomonas
- C. Klebsiella
- D. Escherichia coli
Correct Answer: D
Rationale: Escherichia coli (E. coli) is the MOST common causative agent of urinary tract infection (UTI), accounting for approximately 80-85% of all cases. E. coli is a type of bacteria that naturally resides in the gastrointestinal tract and can easily migrate to the urinary tract, causing infection. Its prevalence in UTIs is due to various factors such as its ability to adhere to the uroepithelial cells and form biofilms, leading to persistent infections. Therefore, E. coli is the most common organism responsible for UTIs in both community and healthcare settings.
A patient presents with recurrent episodes of fever, sore throat, and cervical lymphadenopathy. Laboratory tests reveal leukocytosis with atypical lymphocytes on peripheral blood smear and positive heterophile antibody test (Monospot test). Which of the following conditions is most likely to cause these findings?
- A. Infectious mononucleosis (Epstein-Barr virus infection)
- B. Cytomegalovirus (CMV) infection
- C. HIV/AIDS
- D. Toxoplasmosis
Correct Answer: A
Rationale: The clinical presentation of recurrent fever, sore throat, cervical lymphadenopathy, leukocytosis with atypical lymphocytes, and positive heterophile antibody test (Monospot test) is highly indicative of infectious mononucleosis caused by the Epstein-Barr virus (EBV). EBV is a member of the herpesvirus family and is a common cause of infectious mononucleosis. The atypical lymphocytes seen on peripheral blood smear are reactive T lymphocytes responding to the EBV infection. The Monospot test detects heterophile antibodies produced in response to EBV infection.