Nokea
The primary underlying disorder of pulmonary edema is:
- A. Decreased left ventricular pumping
- B. Increased left atrial contractility
- C. Decreased right ventricular elasticity
- D. Increased right atrial pressure
Correct Answer: A
Rationale: Pulmonary edema is a condition where fluid accumulates in the air sacs of the lungs, leading to difficulty breathing. The primary underlying disorder of pulmonary edema is often decreased left ventricular pumping. When the left ventricle of the heart fails to effectively pump blood to the rest of the body, it can lead to a backlog of blood in the pulmonary circulation. This increase in pressure in the pulmonary circulation can cause fluid to leak out of the capillaries and into the alveoli of the lungs, resulting in pulmonary edema. Therefore, decreased left ventricular pumping is a key factor in the development of pulmonary edema.
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Which of the following is the most critical intervention needed for a client with myxedema coma?
- A. Administering an oral dose of levothyroxine (Synthroid)
- B. Warming the client with a warming blanket
- C. Measuring and recording accurate intake and output
- D. Maintaining a patent airway
Correct Answer: A
Rationale: Myxedema coma is a severe form of hypothyroidism that can lead to life-threatening complications, including decreased level of consciousness, hypothermia, respiratory depression, and cardiovascular collapse. Rapid administration of thyroid hormone replacement therapy, such as levothyroxine, is crucial in the management of myxedema coma to reverse the underlying hypothyroid state and improve clinical outcomes. Therefore, administering an oral dose of levothyroxine is the most critical intervention needed for a client with myxedema coma. While warming the client with a warming blanket, measuring intake and output, and maintaining a patent airway are important aspects of care, they are not as directly related to the reversal of the underlying hypothyroid state in myxedema coma as administering levothyroxine.
Although the etiology of hepatoblastoma is unknown, there are many associated risk factors for development of hepatoblastoma EXCEPT
- A. Beckwith-Wiedemann syndrome
- B. familial adenomatous polyposis syndrome
- C. prematurity
- D. low birth weight
Correct Answer: E
Rationale: Hepatitis C infection is not a recognized risk factor for hepatoblastoma.
The nurse is admitting a school-age child in acute renal failure with reduced glomerular filtration rate. Which urine test is the most useful clinical indication of glomerular filtration rate?
- A. pH
- B. Osmolality
- C. Creatinine
- D. Protein level
Correct Answer: C
Rationale: Creatinine is a waste product produced by muscle metabolism that is normally filtered by the glomerulus in the kidneys and excreted in urine. The level of creatinine in the urine is a direct reflection of the glomerular filtration rate (GFR). As GFR decreases in conditions such as acute renal failure, the amount of creatinine excreted in the urine also decreases. Therefore, measuring creatinine levels in the urine is a useful clinical indication of the glomerular filtration rate and kidney function. pH, osmolality, and protein level may provide additional information but are not as directly linked to GFR as creatinine levels.
A client agreed to become an organ donor is pronounced dead. What is the most important factor in selecting a transplant recipient?
- A. Blood relationship
- B. Compatible blood and tissue types
- C. Sex and size
- D. Need
Correct Answer: B
Rationale: The most important factor in selecting a transplant recipient for an organ that has been donated by a deceased donor is ensuring compatibility in terms of blood and tissue types. Matching these factors between the donor and recipient minimizes the risk of rejection and increases the likelihood of a successful transplant. Compatibility ensures that the recipient's body is less likely to identify the transplanted organ as foreign and mount an immune response against it. Blood relationship, sex, and size are important factors to consider but they are secondary to compatibility in terms of blood and tissue types when it comes to organ transplantation. Ultimately, the goal is to have the best chance of a successful transplant by ensuring a good match between the donor organ and the recipient.
A worried mother of a 4-year-old boy describes attacks of inconsolable crying and prefers to play alone. The MOST appropriate action is
- A. reassures her that this is a normal phenomenon
- B. seek more history regarding other skills and developmental domains
- C. refer her to pediatric psychiatry
- D. investigate social issues of the family
Correct Answer: B
Rationale: Further history is needed to rule out behavioral or psychological issues.