Nokea
Which of the following lab values is elevated first after a client has a myocardial infarction?
- A. LDH
- B. troponin
- C. CPK
- D. SGOT
Correct Answer: B
Rationale: Troponin is the earliest and most specific marker to rise after a myocardial infarction, detectable within hours of cardiac injury.
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Which of the following statements by a client indicates adequate understanding of preparation for electroencephalography?
- A. I cannot eat or drink after midnight.'
- B. I need to wash my hair before the test.'
- C. I need to remove metal jewelry.'
- D. I cannot take aspirin before the test.'
Correct Answer: B
Rationale: The client needs to wash his hair to remove hair spray, cream, or oil that might interfere with attaching the electrodes to the scalp. Food or fluids do not need to be restricted, with the exception of caffeinated fluids. There is no restriction on metal objects. Aspirin is not a medication that needs to be held before the test (just anticonvulsants, tranquilizers, barbiturates, and other sedatives).
Which of the following syndromes associated with incomplete lesions of the spinal cord is a result of damage to one-half of the spinal cord?
- A. Brown-Séquard syndrome
- B. posterior cord syndrome
- C. central cord syndrome
- D. cauda equina syndrome
Correct Answer: A
Rationale: Brown-Séquard syndrome is a result of damage to one-half of the spinal cord. The other choices are also incomplete lesions of the spinal cord, but they have different defining characteristics.
A 27 year-old woman has delivered twins in the OB unit. The patient develops a condition of 5 centimeter diastasis recti abdominis. Which of the following statements is the most accurate when instructing the patient?
- A. Sit-ups are o.k. to do as long as you don't strain.
- B. This condition leads to surgery in $80 \%$ of cases.
- C. Guarding the abdominal region is important at this time.
- D. Antibiotics are required for this condition in $70 \%$ of patients.
Correct Answer: C
Rationale: Protection of the abdominal wall is critical at this point in time.
Which isolation procedure will be followed for secretions and blood?
- A. Respiratory
- B. Standard Precautions
- C. Contact Isolation
- D. Droplet
Correct Answer: B
Rationale: Standard precautions are taken in all situations for all clients and involve all body secretions except sweat and are designed to reduce the rate of transmission of microbes from one host to another or one source (environment such as the client's bedside table) to another.
When the nurse is determining the appropriate size of an oropharyngeal airway to insert, what part of a client's body should she measure?
- A. corner of the mouth to the tragus of the ear
- B. corner of the eye to the top of the ear
- C. tip of the chin to the sternum
- D. tip of the nose to the earlobe
Correct Answer: A
Rationale: An oropharyngeal airway is measured from the corner of the client's mouth, to the tragus of the ear.