Labs Flashcards
(10 cards)
If a patient presents with dehydration, you would expect the hematocrit to be which of the following?
Elevated
Which of the following would not be associated with thrombocytosis?
Sepsis
Malignancy
Iron deficiency anemia
Post-splenectomy
The creatinine to BUN ratio is a good indication of which of the following?
Renal perfusion
Which of the following is NOT true regarding the GFR?
Improves with age.
A 56 year old presents with chest pain. He has an EKG which does not reveal any ST elevations. His troponin is 0.04. When considering next steps you know which of the following to be true:
Elevations in troponin do not necessarily mean an acute MI is happening.
You are reviewing a patients urinalysis for a suspected UTI. You note that it is positive for nitrites. From this information you can deduce which of the following:
The organism is gram negative
When considering ordering a lab or diagnostic test for a patient you know which of the following to be true:
If the result of the test will not change what you are doing do not order the test.
You note a patient has an unusually high hematocrit. The patient has not been feeling well and has a lot of nausea and vomiting. You suspect which of the following may be happening:
The patient is hypovolemic due to loss of fluids and decreased intake.
When evaluating for anemia you obtain a reticulocyte count. Which of the following is incorrect:
An abnormal reticulocyte alone can diagnose the cause of anemia
- correct answers: normal or slightly high can occur with anemia; elevated levels occur with blood loss or hemolysis; new cells are released from the bone marrow.
You note pale cells under the microscope when evaluating hemoglobin. You would expect which value on your differential to be low:
MCHC
