Nokea
Which occurs in septic shock?
- A. Hypothermia
- B. Increased cardiac output
- C. Vasoconstriction
- D. Angioneurotic edema
Correct Answer: C
Rationale: In septic shock, vasoconstriction is a common phenomenon. This occurs as part of the body's response to the infection, where blood vessels constrict in an attempt to maintain blood pressure and perfusion to vital organs. The vasoconstriction leads to increased systemic vascular resistance and contributes to the hypotension seen in septic shock. The body's natural response to infection also involves a release of inflammatory mediators, which can cause vasodilation in some areas while concurrent vasoconstriction occurs in others, resulting in uneven blood flow distribution and contributing to organ dysfunction. Therefore, vasoconstriction is a key factor in the pathophysiology of septic shock.
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The mother of a preterm newborn asks the nurse when she can start breastfeeding. The nurse should explain that breastfeeding can be initiated when her newborn:
- A. achieves a weight of at least 3 pounds.
- B. indicates an interest in breastfeeding.
- C. does not require supplemental oxygen.
- D. has adequate sucking and swallowing reflexes.
Correct Answer: D
Rationale: Breastfeeding can be initiated when the newborn has adequate sucking and swallowing reflexes, which usually develop around 34 to 36 weeks gestational age. It is important for the newborn to have the ability to latch onto the breast and suck effectively in order to receive adequate nutrition and establish a good breastfeeding relationship with the mother. Indicating an interest in breastfeeding is important as well, but having the reflexes necessary for successful breastfeeding is a key factor in determining readiness to begin breastfeeding.
Increased intracranial pressure can cause which of the following?
- A. seizure
- B. nausea
- C. vomiting
- D. all of the above
Correct Answer: D
Rationale: Increased intracranial pressure (ICP) can cause a variety of symptoms, including seizures, nausea, and vomiting. When the pressure inside the skull rises, it can put pressure on the brain tissue, leading to changes in normal brain function. Seizures may occur as a result of the altered brain activity. Nausea and vomiting can also be triggered by increased ICP, as the body's natural response to the disturbance in the brain's normal functioning. Therefore, all of the listed options (seizure, nausea, vomiting) can be caused by increased intracranial pressure.
A client asks nurse Carlos the rationale for giving multi-drug treatment for tuberculosis. Which is an appropriate response?
- A. multiple drugs allow reduced levels of drugs to be given
- B. multiple drugs reduce undesirable drug side-effect
- C. multiple drugs potentiate the action fo the drugs
- D. multiple drugs reduce development of resistant strains of the bacteria
Correct Answer: D
Rationale: Giving multiple drugs for the treatment of tuberculosis is essential because it helps reduce the development of resistant strains of the bacteria. Tuberculosis is caused by Mycobacterium tuberculosis, which has the potential to develop resistance to single drug therapy through genetic mutations. The use of multiple drugs in combination therapy prevents the bacteria from developing resistance since they work through different mechanisms of action, making it harder for the bacteria to adapt and survive. This approach is known as Directly Observed Treatment, Short-course (DOTS), and it is an effective strategy recommended by the World Health Organization to combat the rising issue of drug-resistant tuberculosis.
is type of hydrocephalus which there no obstructive to pass CSF but malformation of arachnoid villi :
- A. non communicating hydrocephalus
- B. communicating hydrocephalus
- C. obstructive hydrocephalus
- D. non of the above
Correct Answer: B
Rationale: Communicating hydrocephalus is a type of hydrocephalus where there is no obstruction to the passage of cerebrospinal fluid (CSF), but rather a malfunction or malformation of the arachnoid villi, which are responsible for the reabsorption of CSF. In communicating hydrocephalus, the flow of CSF within the ventricular system is disrupted, leading to an accumulation of fluid and resulting in increased intracranial pressure.
Mr. Kawasaki, a 23-year old industrial worker, was burned severely in an industrial accident. He has second degree burns on his right leg and arm, and on his left leg. He has third degree burns on his left arm. The triage nurse, using the rule of nines, estimates the extent of burn as:
- A. 18%
- B. 45%
- C. 36%
- D. 54%
Correct Answer: C
Rationale: The rule of nines is a method used to quickly estimate the extent of burns on a patient's body. According to the rule of nines, each area of the body is assigned a percentage that represents its proportional size compared to the total body surface area. In adults, the body is divided into areas of 9% or multiples of 9%.