Nokea
The blood protein involved in the immune system is:
- A. Thrombin
- B. Albumin
- C. Globulin
- D. Hemoglobin
Correct Answer: C
Rationale: Globulin is the blood protein involved in the immune system. There are different types of globulins, including immunoglobulins (antibodies) that play a crucial role in the body's defense against infections. These antibodies bind to foreign substances, such as bacteria and viruses, helping the immune system to recognize and destroy them. Thrombin is a clotting protein, albumin is a protein responsible for maintaining osmotic balance in the blood, and hemoglobin is a protein found in red blood cells that carries oxygen.
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A patient presents with sudden onset of severe, unilateral ear pain, diminished hearing, and purulent otorrhea. Otoscopic examination reveals a bulging, erythematous tympanic membrane with obscured landmarks. Which of the following conditions is most likely responsible for this presentation?
- A. Otitis externa
- B. Acute otitis media
- C. Mastoiditis
- D. Chronic suppurative otitis media
Correct Answer: B
Rationale: Acute otitis media is the most likely condition responsible for this presentation. The sudden onset of severe, unilateral ear pain, diminished hearing, and purulent otorrhea are classic symptoms of acute otitis media. Otoscopic examination revealing a bulging, erythematous tympanic membrane with obscured landmarks further supports the diagnosis. The bulging of the tympanic membrane is due to the accumulation of fluid and pus behind it, causing the characteristic appearance. Treatment typically involves antibiotics to help clear the infection and relieve symptoms. If left untreated, acute otitis media can lead to complications such as perforation of the eardrum or mastoiditis.
The nurse knows that a dog bite has a shorter incubation for rabies if located in the
- A. Leg
- B. abdomen
- C. hand
- D. face
Correct Answer: C
Rationale: Rabies has a shorter incubation period if the bite is located on the hand. This is because bites on the hand are more likely to have direct access to nerve pathways, which can lead to a faster spread of the rabies virus to the central nervous system. In general, bites on parts of the body closer to the brain and spinal cord, such as the hand and face, can result in a quicker onset of rabies symptoms compared to bites on farther extremities like the leg or abdomen.
Type I IgE-mediated immediate hypersensitivity reaction is promptly managed with ____.
- A. theophylline
- B. epinephrine
- C. costicosteroid
- D. diphenhydramine
Correct Answer: B
Rationale: Type I IgE-mediated immediate hypersensitivity reactions, such as anaphylaxis, are promptly managed with epinephrine. Epinephrine is the first-line treatment for anaphylaxis as it helps counteract the severe symptoms by relaxing the muscles in the airways, constricting blood vessels, and decreasing swelling. It acts quickly to reverse the potentially life-threatening effects of the allergic reaction and is crucial in managing anaphylaxis effectively. Other medications like antihistamines (e.g., diphenhydramine) and corticosteroids may be used as adjuncts, but epinephrine remains the primary treatment for immediate hypersensitivity reactions.
Which assessment by the nurse would cause a concern for Meperidine Overdosed?
- A. Respiration rate of 12 bpm.
- B. Dryness of the skin.
- C. Hypercapnia
- D. Pinpoint pupils.
Correct Answer: C
Rationale: Meperidine (Demerol) is an opioid analgesic. Overdose of Meperidine can lead to respiratory depression, characterized by slow and shallow breathing. As a result of respiratory depression, hypercapnia, which is an increased level of carbon dioxide in the blood, can occur. This is a serious concern and requires immediate medical intervention to support respiratory function. Therefore, hypercapnia would be the assessment by the nurse that causes a concern for Meperidine overdose.
A client with congestive heart failure has been receiving digoxin (lanoxin). Which finding indicates that the medication is having a desired effect?
- A. Increased weight
- B. Increased urinary output
- C. Improved appetite
- D. Increased pedal edema
Correct Answer: B
Rationale: Digoxin is a medication commonly used in the treatment of congestive heart failure because it helps to improve cardiac output and reduce heart failure symptoms. One of the desired effects of digoxin is an increase in urinary output. This is because digoxin helps to improve cardiac function, which can lead to better circulation and increased kidney perfusion. As a result, the kidneys are better able to filter and excrete excess fluid, leading to increased urine output. Therefore, an increase in urinary output indicates that the digoxin is having a positive effect in managing the client's congestive heart failure. The other options, such as increased weight, improved appetite, and increased pedal edema, are not indicative of a desired effect of digoxin therapy.