Chapter 1 Quiz - Basic Concepts

Questions and Answers

How long should one wait before requesting an amniotic fluid if no cell attachment is observed?

After a full week of observation

As soon as they arrive in the laboratory (correct)

Only after several unsuccessful attempts

Until the following day

What is the first action taken if no cell attachment is observed during an amniocentesis?

Wait for the cells to attach on their own

Retry the procedure the next day

Check for other potential complications

Request an analysis of the amniotic fluid (correct)

What should practitioners avoid doing in the case of no cell attachment during an amniocentesis?

Delaying the request for amniotic fluid (correct)

Re-evaluating the procedure technique

Informing the patient about the findings

Considering alternative diagnostic methods

Which of the following is true regarding the management of no cell attachment in amniocentesis?

Immediate fluid collection is recommended Signup and view all the answers

If a lab technician notices no cell attachment upon arrival, which action should they prioritize?

Alert a physician and request fluid analysis Signup and view all the answers

What is the correct duration for a certain process?

10 days Signup and view all the answers

Which of the following options does NOT lead to culture failure?

Proper nutrient supplementation Signup and view all the answers

Which of the following is the longest time period mentioned?

28 days Signup and view all the answers

If a culture fails, what could be a contributing factor based on the provided options?

Poor aeration Signup and view all the answers

Which option signifies the least favorable condition for a culture?

Frequent contamination Signup and view all the answers

Among the options, which duration might be too short for a successful culture?

3 days Signup and view all the answers

What duration does NOT correspond to an extended culture period?

3 days Signup and view all the answers

Identifying a key risk factor among the following options is essential. Which is NOT a risk for culture failure?

Optimal moisture control Signup and view all the answers

When should the procedure begin according to the information provided?

As soon as they arrive in the laboratory Signup and view all the answers

Which of the following options signifies the earliest time to start the process mentioned?

As soon as they arrive in the laboratory Signup and view all the answers

Which option would likely delay the initiation of the procedure mentioned?

At the end of the day Signup and view all the answers

What is the significance of beginning the procedure as soon as they arrive?

It allows for maximum efficiency Signup and view all the answers

Which of the following options best reflects the timing for initiating an action if not immediately upon arrival?

After they are set up Signup and view all the answers

What is the most appropriate transport method for specimens intended for long-term storage?

Transport at room temperature Signup and view all the answers

Which condition would likely affect the integrity of a specimen during transport?

Exposed to 40°C Signup and view all the answers

What shipping method would be least favorable for sensitive samples?

Shipping in an incubator Signup and view all the answers

Which of the following practices could lead to sample contamination?

Improper sterile techniques Signup and view all the answers

What is a suitable condition for the transport of samples requiring stability?

Transport at room temperature Signup and view all the answers

Which of the following should be avoided when shipping biological specimens?

Allowing samples to be exposed to air Signup and view all the answers

Which transport method would best preserve specimen viability?

Transporting in a temperature-regulated box Signup and view all the answers

What practice is vital to ensure the safety of specimens during transport?

Minimizing exposure to temperature fluctuations Signup and view all the answers

Which cell type is correctly identified as playing a role in connective tissue?

Fibroblast Signup and view all the answers

What is the function of fibroblasts in the body?

Producing collagen and extracellular matrix Signup and view all the answers

Which of the following cell types is NOT primarily involved in connective tissue?

Cocci Signup and view all the answers

Which type of immune cell is primarily responsible for direct immune responses?

Lymphocytes Signup and view all the answers

What characteristic is primarily unique to fibroblasts?

They secrete matrix metalloproteinases. Signup and view all the answers

Which of the following cells can differentiate into fibroblasts?

Mesenchymal stem cells Signup and view all the answers

Which cell type is primarily found in epithelial tissue rather than connective tissue?

Amniocyte Signup and view all the answers

What primary structure do fibroblasts help to form in connective tissue?

Extracellular matrix Signup and view all the answers

Study Notes

Laboratory Procedures and Timing

Amniotic fluid request is typically made as soon as cells arrive in the laboratory for processing.
A specimen is observed to determine cell attachment status and timing for further testing.

Timing for Amniotic Fluid Request

If no cell attachment is observed, wait 10 days before requesting amniotic fluid for further analysis.

Culture Failure Causes

Culture failure can be caused by various factors, excluding transport at room temperature, which does not necessarily lead to failure.
Potential causes of culture failure include:
- Sample exposure to excessive heat (e.g., 40°C).
- Improper sterile techniques during sample collection or handling.

Cytogenetic Study Cell Selection

For long-term serial cytogenetic studies, fibroblast cells are preferred due to their ability to proliferate and maintain genetic integrity over time.
Other cell types, such as epithelial cells or lymphocytes, may not provide the same longevity and reliability for cytogenetic testing.

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Description

Test your knowledge on the fundamental concepts covered in Chapter 1. This quiz includes various questions to assess your understanding of the key ideas presented in the chapter. Prepare to engage with thought-provoking questions and enhance your grasp of the material.